Windows 7: gt 220 problems

Ok so i just upgraded from 8600gt to gt 220 installed everything workes fine, when i enter a game its really smooth no problems but then after bout 6 minutes my screen starts flickering, it kinda shakes messes up texts etc when i go back to desktop it slowly startes to dissapear. but sometimes i can play for an hour and that shaking screen flickering dissapears O.o but its really annoying i really want to fix for it.
I know its not the GPU temperature because its 40 c at desktop and 60 when playing games.

Things i did



Uninstalled, reinstalled drivers
Updated drivers
Unplugged video card then put it back in

That's basically it, its probably my monitor or the video card
Thanks for any help

Have you connected the auxiliary power connector(s)?

I don't think it came with it O.o or is it attached to the card, sorry im new to those stuff

omg now its the opposite when im idle at desktop it starts shaking but when i get into game shaking stops what is going on??

Few suggestions...

Have you tried a different monitor or video cable?

Are you running at a higher resolution with the new card than you did with the old card, maybe this is causing problems for your monitor?

Lastly shot in the dark here... is it possible that your power supply isn't supplying enough voltage for your new video card?

Thanks for reply active..
No i didn't try different monitor or cable.
No its the same resolution as the old one
My psu is 300 watt on this computer

Its so weird because now when im on desktop screen starts to flicker words get messed up uneven lines etc but when i play a game it slowly becomes invisible and everything seems perfect and again i go back to desktop it starts to appear -.- so fraustrating.

I took a quick look and found the minimum powers supply requirements for GT220:

NVIDIA recommends that you have a minimum of a 300 Watt power supply with +12 Volt current rating of 18 Amps.


So it could be that it's the power supply causing the issues you are seeing, but this is just a guess.

Yea and that is what i have ... anyways i guess ile just wait for nvidia update hopefully itle b fixed
And thanks alot for the help mate, appreciate it.

Their is a new driver out it's a BETA Latest NVIDIA ForceWare Video Drivers Windows 7 pop of the side of the case and you might get lucky and have the PSU rating where you can read it. Don't forget it has to run everything so if it's not up to the task you'll have wierd things that can arise from under power. Fabe

Too bad beta is for only x64 version of windows 7 mine is x32