ATI Radeon 5770 crashing The Sims 3

[h00giz]

Hi there

I recently finished my first gaming PC build, first game I got was Sims 3, installation was fine, it opened up fine but around a minute in... it crashes and I have to restart the computer.

I have a 3.0GHz E8400 Intel processor
ATI Radeon 5770 GPU
Asus P5Q Pro Turbo Motherboard
500 Watt High Power Power Supply

I can run other games such as SPORE and Sim City 4 fine with no issues.

I have all latest drivers and the GPU is recognised by my computer fine.

In side the actual PC itself, the GPU is slotted in firmly, but can be wobbled very slightly.. which could be something.

Any suggestions as to resolutions? Thank you very much.

[patio]

A vid card shouldn't be able to "wobble" even slightly...
Hold down screw in place ? ?
Where is this copy of the game from ? ?
That may be an issue as well...

[h00giz]

There is a place to screw it in, but it would  mean forcing it into place which I don't want to do.. unless it would be ok to do.

And it's a 100% legit copy. from www.ebuyer.com

[patio]

Don't understand why it would need to be "forced" into place...all cards have the same form factor for being installed...
Are you saying there is another card in the way ? ?