I would love to take a look at your source.
The only way i can think of is to remember the last x amount of lines and keep redrawing the whole section. I hope your source can show me a better way.
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I don't think I have you on MSN or Skype. If you can add me on: Cecer1@cecer1.com (MSN) or cecer.public (Skype) (technically they are both the same account) and I'll send the source and explain it over join.me or something :)
Or, just create a Powerfull Exception handler. ?