OK, I see. To be honest I'm running the stable version of GPE on my N800 and the latest from extras-devel in scratchbox, without running into the bug.

Unfortunately I won't be able to track/fix this issue without your help. If you could send me a complete stack trace from Erminig when it crashes, it could be great to pinpoint exactly the location of the error. If you are willing to do that, I can provide you with an updated package of Erminig, with the enhancement that allows one to save the stack trace to a file...