Gimp continually crashes

I am having a heck of a time to get Gimp to run smoothly on my Intel Mac Pro. It seems that when I try to scale something in a layer, it crashes. The funny thing is that sometimes it works, sometimes it doesn’t!!

(gimp-2.2:198): Gdk-CRITICAL **: gdk_pixmap_new: assertion `(width != 0) && (height != 0)’ failedHas anyone else seen a similar problem & how can I fix this?

Thanks,

Mr.S

update: I think I fixed the problem: I upped the memory cache to about 512 megs. So far it seems to be working ok…

Mr. S