Debugging in 2.5?

[Geoff Canyon]

I'm using 2.5 on OS X to work on Navigator (a plugin) and the debugger 
won't work. I can either set a breakpoint by clicking on a line, or by 
inserting the breakpoint command, and code execution will stop there, 
but when I then click step into or step over, the script just runs to 
completion.

Any thoughts before I bugzilla this?

regards,

Geoff Canyon
gcanyon at inspiredlogic.com