PC Troubleshooting...

[Bruce MacMillan]

Hi Chris,

I would suggest trying this route before anything else as it's easy and non-invasive to the OS. Make and model of the PC and the video card/chipset would be needed.

As Clive had suggested once the video is corrected this function should be turned off in the control panel. My ATI card had the hotkeys enabled by default and if you're not careful you can do more that invert the video.