Do you have any *.bat file in CC dir? if you do, edit it in notepad and try changing amount of memory CC will use, ie:
start javaw -Xmx200M -Xms200M -jar CC.jar > cc.log 2>&1
change to:
start javaw -Xmx[b]300[/b]M -Xms[b]300[/b]M -jar CC.jar > cc.log 2>&1
Worked for me :)
*Someone reported that CC doesn't work on Windows 7, can't check that, i don't use that system B)