Ok - well, I'm running the script now, haven't repro'd it yet - but looking at the error message, I think I know (generally) what might be causing it ... it looks like a bad event string, generated from an unhandled event ... will have to review code for suspect handler.
p.s. This script of yours is a HOOT !!! I upped the interval to 20 seconds - might play with that more ... idea - how about you change the WINDOW CAPTION when a new, unchecked message comes in - that way, if you step away, and miss a post, you can tell by the minimized taskbar icon - a new message has arrived.
