a little problem with PSP X

Every now and then, as I'm making icons with PSP X, this happens:




(it's there in the lower right-hand corner, where it says "script output", which isn't there normally, only when this error happens)

The program freezes, I can't click on anything, and I end up having to close the program with the task manager. It doesn't happen every time I use the program, but it does happen often enough to be a pain. Does anyone know what's happening or how to fix it?

Thanks in advance!