Vanishing geometry after distribution upgrade

Today I did a dist-upgrade from Debian Etch (stable) to Debian Lenny (testing). Since there's no native nVidia driver in the repository for the kernel I'm running (2.6.18-5-K7), I downloaded and installed the latest driver directly from nVidia's site (100.14.19).

Since the upgrade, most of the geometry on my screen (land, prims, avatars, etc.) vanishes from a number of camera angles, but especially if my camera is facing directly north, south, east or west.

I've tried shutting off all GL extensions, as well as using the latest nVidia legacy driver (96.43.01), but it continues to happen.

Has anyone ever encountered this, and is there any way to fix it?



CPU: AMD Athlon(tm) 64 Processor 3800+
Memory: 1012 MB
OS Version: Linux 2.6.18-5-k7 #1 SMP Wed Sep 26 18:29:20 UTC 2007 i686
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce 7600 GS/PCI/SSE2/3DNOW!
OpenGL Version: 2.1.1 NVIDIA 100.14.19
LLMozLib Version: 1.1.0 (Mozilla GRE:1.8.0.12_0000000000)
Packets Lost: 4/21300 (0.0%)
Viewer Digest: f32fda1e-9085-839a-3f2d-41693bfcbf66

Looks like:
/263/7d/212968/1.html

Looks exactly like that! Thanks!

Now I just need to find a mirror that still has the 7.0.1-1 debs...

Update: found one here:

http://www.las.ic.unicamp.br/pub/debian/pool/main/m/mesa/

Update: worked like a charm! Thanks again!

Heh. I guess I should have read the forums before deciding "to hell with it" and spending 3 hours rolling my machine back to etch

Has somebody submitted a bug report to Debian and/or Mesa? Ideally, whatever's wrong with the latest Sid Mesa should get fixed....