Ian Mann wrote:
> 

> 
> If I run this with the debugger on and step through after the tron break
> all is well.
> 

Ian,

I'm not sure that will solve your problem, but perhaps you could
take example on the drag and drop filter for the handling of the
Debugger with callback procedures:

#if def _useFBdbugger
TROFF :REM  ••• cannot use Debugger •••
#endif
"CompletionProc"
ENTERPROC FN Completion(inParamPtr AS POINTER)
inParamPtr.ERROR = _noErr
EXITPROC
#if def _useFBdbugger
TRON
#endif


-- 

Cheers

Alain

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