The freezer thing is JUST for the hard drive. I do not think it is a good idea to put the entire laptop in the freezer.
I only use the freezer thing as a last resort. It MUST be put in a ziplock type bag and left in over night.
Try the manufactors diag program for your hard drive 1st. See if it can tell you what is wrong. You should be able to find it here.
http://www.tacktech.com/display.cfm?ttid=287