Alain wrote

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:

Yes - that fixed it - I was hoping it was something like that.

It's getting so I'm going to have to come over and buy you lunch. Or
send you a case of Welsh wine - maybe not.

How about a mad sheep ?

Thankyou again

Regards

Ian