Re: Please do not use 295.40 or the security patch with GeForce 6, 7 or 8800GTX/GTS c
I can confirm the issues with 295.40 and the 8800 GTS w/640K on Ubuntu 12.04. I either get just the wallpaper with no Unity panels, or I get the Unity panels but it takes upwards of 2+ minutes for mouse clicks to produce results like launching programs or displaying data from indicators. Unity 2D seems to work OK. I installed 295.33 from the download here, which seems to work great - ~8000 fps with glxgears. I have not installed the security patch for 295.33 given the mixed results reported in this forum.
Tanker Bob's Blog
Gigabyte EP45-UD3L MB, Q9650 Core 2 Quad @ 3.3 GHz (OC), 8 GB OCZ Platinum DDR2 SDRAM, EVGA GeForce 8800 GTS w/640MB, 40 GB Intel SSD, 2.0 TB x2 SATA RAID1, Ubuntu 12.04 x86_64