My Explorer keeps locking up for some reason. It normally happens if the page has a lot going on or if I am multitasking. I removed all of the firewall and security software from Comcast, Macaphee, and this didn't help out. This just started a couple of weeks ago. I scanned my computer for viruses and spy ware but it came up clean. I cleared all of the cookies too. Any other suggestions? I would hate to lose all of my info on this computer, and it has been superbly reliable until this point.