There is a bug affecting Internet Explorer in Windows 200, XP, and Server 2003. A dialog would pop-up requesting the user to hit F1 (which is the commonly known “Help” button), which will lead to untold misery. Microsoft knows about this, but a patch is always too late.
The safest way? Move to alternative web browers like Firefox, Opera, Chrome or Safari. My personal favorite is Firefox, that’s my take 🙂