[Newbies] SUnit - TestRunner

Hello all, I am suddenly having unable to run the TestRunner and the only thing I can put my finger on as to what change brought about this problem is the loading of Celeste and supporting packagesinto the image, most suspicious being LargeLists (only because it is breaking on message selector listSelectionAt:) The wierd part is that I don't get the normal debugger, I get a white screen with the walk back text. I took a screen shot of Squeak with the trace back window showing if anyone would like to see it. Squeak is completely locked up at this point so the white screen comes from the VM blowing up? (I am guessing here (and a few other places as well:)) Thanks Johnny.