1. First of all, I had played FS2_Open in 3.5.5 and the shinemaps worked, and I installed 3.6 and they ceased to work.
2. Since I use Windows 98, the Catalyst drivers have different version numbers. My drivers, dating from October 2004, are numbered 4.11, I think.
3. Has any of the lighting code changed in the transition from 3.5.x to 3.6? The lighting code needs to be fixed because a lot of people use ATi cards. Also, OGL crashes on my computer. I would consider these lighting problems to be the most serious bug in FS2_Open and they should get top priority.