Well they ran fine right after I downloaded it, I played a few rounds on them, then a day later, it kept crashing. Also I do run the game through the Admin, since that's the only way the game will launch on Vista.
I have a Dell Studio XPS 435MT Vista
Proscessor: Intel(R) Core(TM) i7 CPU 920@ 2.67GHz
RAM: 4.00 GB