I've just exchanged my old 8600gt for a new geforce 250 gts 1gb ram and im having the same problem - all menus/overlays (except firefox context menu) are white - when i close the menu i see the content for maybe half a second though... however thats not really a way to work.

ive read through some threads now, even tried irc but i'm not getting anywhere.

when i tried to follow the instructions in dies post i encountered an error with "cp -Rf OpenGL.framework /System/Library/Frameworks/" - said something like it couldnt copy there.

is there any easy way of updating the gfx drivers? as in fool proof? is the geforce 250gts even supported? i am rather new to this (although i use osx86 10.5.2 - the kalyway install i think for quite a while now without any problems) but if anyone could point me in the right direction that would help too.

system specs:

CPU
Model Name: Mac
Model Identifier: System Product Name
Processor Name: Intel Core 2 Duo
Processor Speed: 2.13 GHz

GFX
I Can Has Model?:

Chipset Model: I Can Has Model?
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0615
Revision ID: 0x00a2
ROM Revision: NVinject 0.2.0

(edit)
i just found out that video playback seems to have gone haywire too - vlc as well as quicktime crash when opened/trying to play a video