Unity Web Player constantly crashes

Alright guys, so, I've been having this problem since day 1 of working on this computer. I try to load a game (Be Gone, Contract Wars, Red Crucible [sometimes]) and they all crash. I've uninstalled and reinstalled unity web player multiple times, rolled back to 4.2, and uninstalled and reinstalled my browsers (Firefox, Chrome, Opera). Currently running Windows 7 64-bit, Radeon X1300/X1550 series, and an Intel Dual Core clocked at 1.86 GHz. I have never opened up this computer, nor do I own it, it's a work desktop and I get really, REALLY bored during breaks :P. Any insight into fixing this problem would be appreciated. Cheers! (Where I play my games)-http://www.kongregate.com/