Apologies for jumping in...

>>It seems that none of the breakpoints I am setting in mmUltraTextEditor.cs are being reached while running the code.

When I do this (put a breakpoint in the MM code), I still have to reload symbols to get it to work. Every now and then, in the solution properties, I set the "Debug Symbol Files" to the MM .pdbs, but those settings seem to get lost.

Let me know if you don't know how to do that.

Mike