Whenever I right click now "Open in new window" it automatically minimizes and then vanishes... How do I fix this, or is it a virus?

Sounds like a virus of some sort to me

Have u tried scanning ur PC for virus's/malware?

are you using firefox?
if so, click on help then restart with add-ons disabled
after you've done this, a firefox Safe Mode will appear
check Reset all user preferences to Firefox defaults
then make changes and restart

or try to reinstall your browser if this does not work

do a scan with an anti-virus and anti-malware if it continues even after you reinstalled

also, which game was it?

Thanks that fixed it! It was generals c&c, i downloaded, and went to a million sites to get it working...

more than likely you got a unwelcome little "bonus" then, suggest you do a spyware/malware scan at least