I've had Sins for about a month.

I have 

-  Vista

-  GeForce 8500, with the latest drivers installed

-  ADI SoundMAX HD audio driver for Windows Vista, downloaded latest

However, the program runs for a certain length of time, ranging from a few minutes to 1/2 an hour or so without locking up and stopping working, without error or dump.  Have to use task manager to end.  On occasion, have had to use hard restart.

Anyone got any ideas, because as it stands, the game is useless for me and only represents a waste of money unless i can get this fixed!