On pi.hard-light.net they say that 3.6.9 RC7.9x is the only build that's confirmed to run The Procyon Insurgency with no problems.
I actually tried it with 3.6.14 (and 3.6.12 MediaVPs) before, but it kept crashing during the 3rd part of the stealth mission where you first see the Agni carrying an Ancient ship.
Anyway, I changed my aspect ratio to 4:3 and the problem went away. I kept it at 1024x768 when I generated this debug spew, but I can make a debug log with the resolution at 1366x768 if that might change anything. If there's a better way to get rid of the problem while still being able to use my whole monitor, I'm all ears.
Debug spew is as follows:
==========================================================================
DEBUG SPEW: No debug_filter.cfg found, so only general, error, and warning
categories can be shown and no debug_filter.cfg info will be saved.
==========================================================================
Passed cmdline options:
-env
-missile_lighting
-glow
-spec
-orbradar
-rearm_timer
-targetinfo
-mod pi,PI,mediavps
-debug_window
-window
Building file index...
Searching root 'C:\games\freespace 2\pi\'
Searching root pack 'C:\games\freespace 2\pi\PIadv.vp'
Searching root pack 'C:\games\freespace 2\pi\PIassets.vp'
Searching root pack 'C:\games\freespace 2\pi\PIaudio.vp'
Searching root pack 'C:\games\freespace 2\pi\PIeffects.vp'
Searching root pack 'C:\games\freespace 2\pi\PImain.vp'
Searching root 'C:\games\freespace 2\PI\'
Searching root pack 'C:\games\freespace 2\PI\PIadv.vp'
Searching root pack 'C:\games\freespace 2\PI\PIassets.vp'
Searching root pack 'C:\games\freespace 2\PI\PIaudio.vp'
Searching root pack 'C:\games\freespace 2\PI\PIeffects.vp'
Searching root pack 'C:\games\freespace 2\PI\PImain.vp'
Searching root 'C:\games\freespace 2\mediavps\'
Searching root pack 'C:\games\freespace 2\mediavps\3610_Patch.vp'
Searching root pack 'C:\games\freespace 2\mediavps\MV_Advanced.vp'
Searching root pack 'C:\games\freespace 2\mediavps\MV_Assets.vp'
Searching root pack 'C:\games\freespace 2\mediavps\MV_Core.vp'
Searching root pack 'C:\games\freespace 2\mediavps\MV_Effects.vp'
Searching root pack 'C:\games\freespace 2\mediavps\MV_Music.vp'
Searching root 'C:\games\freespace 2\'
Searching root pack 'C:\games\freespace 2\Root_fs2.vp'
Searching root pack 'C:\games\freespace 2\smarty_fs2.vp'
Searching root pack 'C:\games\freespace 2\sparky_fs2.vp'
Searching root pack 'C:\games\freespace 2\sparky_hi_fs2.vp'
Searching root pack 'C:\games\freespace 2\stu_fs2.vp'
Searching root pack 'C:\games\freespace 2\tango1_fs2.vp'
Searching root pack 'C:\games\freespace 2\tango2_fs2.vp'
Searching root pack 'C:\games\freespace 2\tango3_fs2.vp'
Searching root pack 'C:\games\freespace 2\warble_fs2.vp'
Found 29 roots and 13574 files.
Setting language to English
Initializing OpenAL...
Using 'Generic Software' as OpenAL sound device...
OpenAL Vendor : Creative Labs Inc.
OpenAL Renderer : Software
OpenAL Version : 1.1
... OpenAL successfully initialized!
Failed to init speech
GR_CPU: Family 15, MMX=Yes
Initializing OpenGL graphics device at 1024x768 with 32-bit color...
Initializing WGL...
Requested WGL Video values = R: 8, G: 8, B: 8, depth: 24, double-buffer: 1
Actual WGL Video values = R: 8, G: 8, B: 8, depth: 24, double-buffer: 1
OpenGL Vendor : ATI Technologies Inc.
OpenGL Renderer : AMD Radeon HD 7660G
OpenGL Version : 4.2.11764 Compatibility Profile Context
Using extension "GL_EXT_fog_coord".
Using extension "GL_ARB_multitexture".
Using extension "GL_ARB_texture_env_add".
Using extension "GL_ARB_texture_compression".
Using extension "GL_EXT_texture_compression_s3tc".
Using extension "GL_EXT_texture_filter_anisotropic".
Unable to find extension "GL_NV_fog_distance".
Using extension "GL_EXT_secondary_color".
Using extension "GL_ARB_texture_env_combine".
Using extension "GL_EXT_compiled_vertex_array".
Using extension "GL_ARB_transpose_matrix".
Using extension "GL_EXT_draw_range_elements".
Using extension "GL_ARB_texture_mirrored_repeat".
Using extension "GL_ARB_texture_non_power_of_two".
Using extension "GL_ARB_vertex_buffer_object".
Using extension "GL_ARB_pixel_buffer_object".
Unable to find extension "GL_APPLE_client_storage".
Using extension "GL_SGIS_generate_mipmap".
Using extension "GL_EXT_framebuffer_object".
Using extension "GL_ARB_texture_rectangle".
Using extension "GL_EXT_bgra".
Using extension "GL_ARB_texture_cube_map".
Using extension "GL_EXT_texture_lod_bias".
Found special extension function "wglSwapIntervalEXT".
Max texture units: 8
Max elements vertices: 2147483647
Max elements indices: 16777215
Max texture size: 16384x16384
Can use compressed textures: YES
Texture compression available: YES
Using trilinear texture filter.
... OpenGL init is complete!
Size of bitmap info = 705 KB
Size of bitmap extra info = 40 bytes
ANI cursorweb with size 24x24 (25.0% wasted)
GRAPHICS: Initializing default colors...
OpenGL: Created 512x512 FBO!
OpenGL: Reusing 512x512 FBO!
SCRIPTING: Beginning initialization sequence...
SCRIPTING: Beginning Lua initialization...
LUA: Opening LUA state...
LUA: Initializing base Lua libraries...
LUA: Performing global function/(library/object) name repeat check...
LUA: Performing library/object name repeat check...
LUA: Performing object/object name repeat check...
LUA: Performing library/library name repeat check...
LUA: Initializing library functions...
LUA: Initializing object functions...
SCRIPTING: Beginning main hook parse sequence....
Wokka! Error opening file (scripting.tbl)!
Unable to parse scripting.tbl! Code = 5.
SCRIPTING: Inititialization complete.
Using high memory settings...
Wokka! Error opening file (interface.tbl)!
Unable to parse interface.tbl!
cf_get_file_list_preallocated looking for type=7, filter="*-sdf.tbm"
TBM => Starting parse of 'mv_adveffects-sdf.tbm' ...
TBM => Starting parse of 'mv_effects-sdf.tbm' ...
ANI 2_radar1 with size 170x170 (33.6% wasted)
Windoze reported 16 joysticks, we found 1
Current soundtrack set to -1 in event_music_reset_choices
cf_get_file_list_preallocated looking for type=7, filter="*-mus.tbm"
TBM => Starting parse of 'mv_music-mus.tbm' ...
cf_get_file_list_preallocated looking for type=7, filter="*-mfl.tbm"
TBM => Starting parse of 'mv_advmuzzle-mfl.tbm' ...
Wokka! Error opening file (armor.tbl)!
Unable to parse armor.tbl!
cf_get_file_list_preallocated looking for type=7, filter="*-amr.tbm"
cf_get_file_list_preallocated looking for type=7, filter="*-wxp.tbm"
TBM => Starting parse of 'mv_adveffects-wxp.tbm' ...
TBM => Starting parse of 'mv_effects-wxp.tbm' ...
BMPMAN: Found EFF (exp20.eff) with 64 frames at 30 fps.
BMPMAN: Found EFF (ExpMissileHit1.eff) with 44 frames at 30 fps.
BMPMAN: Found EFF (Gmuzzle.eff) with 5 frames at 30 fps.
BMPMAN: Found EFF (PWmuzzle.eff) with 4 frames at 30 fps.
BMPMAN: Found EFF (Rmuzzle.eff) with 4 frames at 30 fps.
BMPMAN: Found EFF (Bmuzzle.eff) with 5 frames at 30 fps.
BMPMAN: Found EFF (exp05.eff) with 47 frames at 20 fps.
BMPMAN: Found EFF (exp06.eff) with 48 frames at 20 fps.
BMPMAN: Found EFF (exp04.eff) with 60 frames at 20 fps.
BMPMAN: Found EFF (Maxim_Impact.eff) with 23 frames at 30 fps.
ANI Lamprey_Impact with size 80x80 (37.5% wasted)
BMPMAN: Found EFF (particleexp01.eff) with 10 frames at 8 fps.