Cant seem to get past the 1st couple of weeks.

Hey guys,I have a problem with the game it keeps freezing on me after maybe only a few days or a couple of weeks in the game,is this a known problem?

I have a pretty decent system with dual core 2.66,4gb ram,8800gt 512mb card(with the newest drivers)and vista 32bit.

any help would be great thanks.

On a side note a went to buy the player Rat and when it came to his salary he asked for 0 pounds per week,anyone else getting this also?

Also best to add that I have added the patch.