Hi,
I have recently moved my AutoCAD 2010 LT install from an old Windows 7 32 bit box to a new Windows 7 64 bit box.
Whenever an open file dialog should appear (file open, file save as etc) the program locks up.
I am not running Norton AV which appears to be a known problem.
I am running AVG CloudCare anti-virus, but disabling this does not help.
Thanks,