This morning I noticed that a huge chunk of my Firefox thumbnails were gone, the history completely wiped, and system was slow. As I have cats, I assumed they had gotten on the desk and jostled the keyboard around in that way that always seems to mess up a computer, and since Firefox was open, that was the victim. When I opened task manager, I noticed 5-6 instances of iexplorer, rundll and explorer running, consuming a great deal of resources, so I ended all but the needed explorer instance. This problem has reoccurred several times, even after running MalwareBytes and deleting all found problems and rebooting. I really know nothing about malware and etc, but I must have this computer functioning because my medically required home phone runs from it. These are my system specs, such as they are: Microsoft Windows XPSP3 AMD Athlon Processor 2650e 1.61GHz, 2.75GB of RAM (though I know I have 3 installed) The computer itself is an eMachines mini tower PC. Can anyone help me?