Start Menu problem

#1
...And suddenly...start menu is no more...
I am running W7 on a Xeon with 2G RAM, a quadro FX 5500 and a Creative SB X-Fi. I noticed the problem after installing a driver for a usb dongle (hardware key for Quest3D software). Now, when I click on the start menu button the usual start menu window does not appear at all.

I tried to roll back to a previous installation and got to a situation where I had to double-click the start menu button for the window to appear!

On the other hand, if I login using a different account start menu works just fine...

Any ideas?
 


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