I have Windows 7 64-bit Home Premium on my Acer netbook, with the latest vendor-supplied chipset/video drivers and such, as well as the latest Windows patches.
The Taskbar doesn't work properly; the last hovered-on application will stay "lit up", even if I'm in another app or everything is minimized.
I haven't been able to narrow the behaviour down to any specific causes, in terms of programs or anything. It really does seem to happen at random, with Windows Aero effects enabled or disabled (it makes no difference). Sometimes it does it for hours on end, then randomly, it will stop for a while, then start doing it again.
Has anyone else ran into this behaviour? I posted about it on another computer forum and got at least one person saying they have the same odd behaviour exhibited by their Windows 7 install.
Here is a screenshot of the behaviour:
Note that this happens with ANYTHING on the Taskbar, not just Firefox. It really is quite odd, and annoying...