I have seen the same thing with XP. Interesting, when I cannot move the icons on my desktop the up and down arrow, page up, page down, home and end keys do not work in IE 6 while browsing. They [the arrows] work fine in all other applications and they work in the note fields, text fields, etc of a form while browsing.
Also, I have noticed, the mouse, when I click in a cell in Excel, acts like it is stuck down.
I have yet to understand what causes this. I have scanned for spyware, virii, trojans, worms, etc and nothing is there. I have killed all running applications, as well as all unnecessary services and it still doesn't solve the problem.
A reboot, however, always does.
I have found one common occurrence. If I am using my PC and the mouse jumps up to the upper right corner and it acts like I have right-clicked the desktop, I can assure
myself that the arrow keys are dead in IE6 and the icons will not move on the desktop. I cannot drag and drop anything from the desktop to any application and java script does not work in browsed web pages.
I have a Dell D600 notebook and have installed all of the newest drivers.
It acts like a shell/IE6 error to me.