new pc, installing 8.3.30, select not working?

[jleslie]

this is a strange one, I just got a new windows 10 pc, installed my version of ac3d 8.3.30 put in my licence key, and when working I can't use the select key with the "select-through" off. If I turn on the select-through all is well, but when the select-through is off, aka the regular mode, it won't select anything.

Any Ideas? This all worked perfectly on my old PC