Hog 2PC Croakes when I use set & offset in the effects engine

I am working on Hog 2 PC and when i am programming cues and effects it keeps croaking on me when trying to offset effects. I will load the fixtures into the programmer and set the effects in. When I hold down num lock (keyboard shortcut for set) and move the wheel to offset the fixtures it croaks. I get the following message.
TNT v3.4[178]: Sorry I've Croaked...
Assert: '![WINCHILD*]pickWIN && !pentry' is
FALSE
/D:\Src\Hog2PC_3-4-3\tnt\Build_V3\fxwin.cpp
[$Revision: 1.1 $]/259
:dunno:
Has anyone had this happen to them or know if I can change the keyboard shortcut so that it is not num lock, I think that might help? Thanks.
Related