I'm running Fedora Core 10 and whenever I open an application that uses opengl it displays diagonally. I've tried to fix it before, but was unsuccessful. Now, I'm not quite sure how to approach this problem. Snapshot1.png shows what glxgears looks like when it runs. Any help would be appreciated - Thanks in advance!

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You should also post your graphics card and the driver module you are using.

Here is the lspci output

[janet@wallaroo ~]$ lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8378 [KM400/A] Chipset Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237/VX700 PCI Bridge
00:05.0 Mass storage controller: Promise Technology, Inc. 20269 (rev 02)
00:06.0 Ethernet controller: 3Com Corporation 3c595 100BaseTX [Vortex]
00:0f.0 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
01:00.0 VGA compatible controller: VIA Technologies, Inc. KM400/KN400/P4M800 [S3 UniChrome] (rev 01)

I also attached output from Kinfocenter. Thanks!

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My bet is that your glx driver isn't the right one for your video driver. Video is memory mapped, and if you get the width (in pixels) wrong, then it naturally displays diagonally.