I have refused to install sp2 all the time, but I have to do it now, since sp1 is "not safe" anymore and I need to use Windows Movie Maker 2.1

Anyhow, after upgrading to sp2, the standby problem occurs, when I choose standby option, the computer will go to standby for like one or two seconds, then it wakes itself up.

No extra programs installed during the upgrading, no extra hardware tried. Simply upgraded to sp2 and bang! standby stops working.

Any suggestions?