It is not necessarily anything to do with the pattern table. For example. If you do a save as on an assembly, Pro/E will ask you if you want to copy the parts also. If you select any of the parts, it pops open Pro/Table dialog so that you can enter new part names. This is how I have nailed...
I am using Pro/E 2000i2. I'm not sure how, but my Pro/Table wont load any more. My Family Table Editor and all other editors seem to work fine. When I try to modify a hole pattern though, nothing happens. Anybody dealt with this before