Alright, here goes: I'm sure this has been asked many times, but I'll ask it again.
I downloaded the 7/28/2005 build of fs2open (The later one didn't work at all), and the .vp files needed, and all of Light's effect files. I then transferred them to my other computer (the one I play Freespace 2 on) and installed them as directed by the setup guide at the SCP's website. I even configured everything right at the launcher! But now, when I try to use it, nothing whatsoever happens. The screen blacks, then flickers between the desktop and various shades of black screens, then returns to the desktop. Furthermore, Freespace 2 (the retail) won't work (says it has a problem with the weps .tbl) and neither will FRED2, it has the same problem. What's going on? (If it matters, the computer i'm attempting to run it on is an older one, with Windows 98 SE.)