I posted a pic here:

https://timmydosmalltalk.wordpress.com/2016/05/29/linux-64x64-squeak-cog-spur-display-problems/squeak64x64debuggerproblem/

Debugger and inspectors do not show some morphic panes correctly.

I don't know how to begin to track this down. I will be happy to try if somebody will tell me where to start.

cheers.

tty