Hi,
is configuration of "clean" PC the same as "problematic" one ? I mean HW and Windows...
Launch shortcut runs parametric.exe program, this program looks for parametric.psf file by default. Does parametric.psf file contain license name and path to license source ?
Look for std.out file in startup directory. It can contain error message.
Add following option into config.pro file and do a test.
graphics win32_gdi
MH