Smuli

I have been testing every 196 series when out and always returned to 188.43 that has best besformance in my system and no flashes. Still not fixed.

I have filled Nvidia driver feeback from regarding this lighting issue. You can do that in Nvidia web pages. But I don't anything about possible fixes.

Unfortunately, when I tested this: copied nvoglv32.dll from 186.xx drivers to CMSF folder then installed 191.07. Result was opengl driver version mismatch error and CMSF exited. BTW, I didn't have that nvoglnt.dll in my Vista 32bit machine at all. EDIT: Clarification> I tested this proposal only on Vista 32bit

I have tested nearly all Geforce drivers from 181.xx to newest 191.xx. And 186 serie is the last one that does work with ambient lightning effect. Someting has been changed in the newer drivers. Bad luck, as many other programs performs better for me with 191 series drivers.