I have two separate PCs with XP SP3.
On one, in Windows Explorer, the scrollbars appear/disappear and resize as I am resizing the window itself.
On the other one, everything is static until after I let go of the mouse click.
The same thing happens in IE (both version 7). On one, the elements resize and rearrange dynamically. On the other, nothing happens until I let go.
I'm figuring it's a Windows setting somewhere???