Little odd problem

[Demon2k3]

Sometimes when i tab down quite often in the gme, happened 3-4 times in total.
When i tab up the game screen is flithing between an strange screen and the game screen. Problem is that i can't do a squat and have to close the game manually from desktop.

I'm thinking it could be a memory issue.

 

[Tualatin]

You can test your memory by this little program:
ttp://www.memtest86.com/memtest86-3.2.iso.zip

- You need to burn that .iso file on a cd, then reboot and make sure your CD/DVD drive is first boot option.. it'll run a few times, and the longer it doesn't find any, the less likely your memory is 'broken'. If it does give errors, you should replace the memory i think.

On the other hand, it may be windows sticky keys too, giving you a hard time.. If it's not disabled, or you don't know:
1) Press [SHIFT] 5 times quick in a row
- Windows will prompt you then
2) Press Settings, and make sure all stuff is disabled.