Yes I did reinstalled then installed firefox a few mintues ago but nothing work at all.. .... IE is suck and i tried to clcik CNN and other but wont open in IE.........
REBOOT! Did you try reboot? It happens to me once a while...so I went ahead and reboot and it works.
Defragments the hard disks? My firefox look better faster after I did defragment my main disk today.
Never had any issues with FF. When FF stopped working, did you install any new programs? Are you using a firewall?