Service Pack 3-Standby Mode Crashes

I installed service pack 3 and have noticed a weird problem-every time I put
the computer on standby, it crashes every time I come back from standby mode.
I used it all the time with SP2 with no problems whatsoever, but with SP3
when I come back from standby it crashes. Has anyone else had this problem?
And if so, is there a fix?