Alt Tab Problem

I have a problem with task manager, in that the tabs at the top are missing. I think this happened after playing a game that crashed, ie I Alt-Tab-Deleted during the game a few times + pressed some oher keys and then turned off the main switch when nothing happened.
Since then, I cannt tab between the processes/applications/memory usage, etc. Did I minimise something by mistake - anyone know the keyboard shortcut to undo it? Or could it be something else?
By the way, when I log on with another account, there is no problem!

Ideas?

Welcome to Windrivers cjp

Start, run, type in
regedit
Click ok - when regedit starts, navigate to:
HKEY_CURRENT_USER\Control Panel\Desktop

On the right hand pane, find "coolswitch"
Right click coolswitch, click modify and in value data, type
1
Ok that and exit regedit, reboot.

Thanks for the reply!
Unfortunately, thhe value in the registry was already 1.
Any other ideas?

Try Doubleclicking the edge of the taskmanager window.

Welcome to Windrivers Zep_hyr

Good tip, forgot about that!

Thanks, thats fixed it!!