i have a mx4000,im a bit of a beginner.but our old pc cards fan froze and it overheated n basicalli melted. so we got this new mx4000 and now none of our pc games work! its 128mb n even red alert 2 wont work! also everynow and then the pc will freeze,n then instantly it was catch up again. does anyone know what the hell is going on?n how i can fix it?