I'm using Win2000 Pro with Service Pack 3 installed. Almost every day I reach a point where IEXPLORE will lock up - the Explorer Windows won't respond to any k/b or mouse commands, they won't even close, and the machine performance seems to slow down. At that point I have to open Task Manager, find IEXPLORE.EXE and end the process. The number of open explorer windows doesn't seem to matter, nor does the amount of time the windows have been open. Once I shut down IEXPLORE.EXE with Task Manager, the machine's performance returns to normal, and I can launch Internet Explorer again immediately after shutting it down - but the problem will occur again later, unpredictably.
The version of Internet Explorer is 6.0.2800.1106. I have searched through Windows Update but haven't found anything that could be causing my problems.