I consider myself a power user to some extent. After working on a few things, I might end up with 8-10 Firefox windows grouped together on my taskbar. This is all well and good, except eventually when I went to click on the program group, I no longer got my list of windows to choose from. Frustrating!
I’m sure you’ll be pleased to know this is curable with a handy little VB script (right click, save as). Esentially, this modifies the registry and restarts Explorer. After running, you’ll find that your start menu and taskbar are defaulted back to stock settings and program groups are fixed.