XP-sp2 and a Gigabyte Geforce6600Gt video card

Have just installedthe Geforce 6600 GT card and the drivers appear to have
installed corrctly and work properly.

The problem is now whe I logon to the pc a installation program attemps to
run but fails becouse of a missing file.

I have tried removing the video card software and reinstalling it to no
avail. The system is otherwise working fine.

Can someone tell me where i can find the pointer that starts this program so
I can remove it. I is not in the startup directory or in the config.sys,
Autoexec.bat, win.ini or sys.inin files. I suspect it is hidden in the
registry somewhere.

Any Idea's helpfull.

Regards JAmes