Firefox display switched to inverse

Binary package hint: firefox

While trying the current Hardy snapshot liveCD, using firefox 2.0.0.10+2nobinonly-0ubuntu2, my firefox window suddenly went inverse. I.e. black became white, red became cyan etc.

A screenshot is available at:
  http://www.csse.uwa.edu.au/~john/bugs/Firefox_inverse.png

This was easy to workaround. Opening a new window (Cntl-N) provided a window with the correct colors.

Disabling Desktop effects fixed the problem, and the problem did not reoccur when Desktop effects where re-enabled.

My card supported 3D effects without any setup. It was a i945G:
00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02) (prog-if 00 [VGA controller])
        Subsystem: ASUSTeK Computer Inc. Unknown device [1043:817a]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at dfd00000 (32-bit, non-prefetchable) [size=512K]
        Region 1: I/O ports at 8800 [size=8]
        Region 2: Memory at e0000000 (32-bit, prefetchable) [size=256M]
        Region 3: Memory at dfd80000 (32-bit, non-prefetchable) [size=256K]
        Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
                Address: 00000000 Data: 0000
        Capabilities: [d0] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

ProblemType: Bug
Architecture: i386
Date: Sat Feb 9 13:57:38 2008
DistroRelease: Ubuntu 8.04
Package: firefox 2.0.0.10+2nobinonly-0ubuntu2
PackageArchitecture: i386
SourcePackage: firefox
Uname: Linux ubuntu 2.6.24-5-generic #1 SMP Thu Jan 24 19:45:21 UTC 2008 i686 GNU/Linux