cant really feel air coming out of the fan, are you in a really hot room?
no matter if you have a volcano 20000000 in there, if your room is very hot it still be blowing hot air into the cpu..
make sure your case has good air flow, in and out.. and also, did you apply artic silver on your fan/cpu?
_P4 Northwood 2.8C Ghz HT
_Kingston 512 DDR400 Ram [2x 256]
_Awesome looking white plain case with cool green and red power/HD lights, and a newely acquired Intel P4 sticker!