Hi there, while working on resolving bug #313, I got aware of a pretty big oversight in the app_server: the memory allocated for bitmaps is put into client writable bitmaps. That alone is definitely not a problem. The problems comes in with how the memory of those bitmaps is maintained: the allocator actually puts its working structures into that memory. If a client now accidently clobbers this memory, the app_server will crash. I just wanted to give you a hint about what I'll work on next :-) Bye, Axel.