I managed to unstuck it with frantically pressing alt-.and where was it stuck?
On Windows I have no idea but I assume you're not on Windows cuz we don't have the 64-bit JIT VM working there yet.Is this not a 64 bit VM on Windows? Using it right now...I guess it's only a StackInterpreter VM. If you use the About Squeak tool what's the VM version info you get?