Error: Video1PlayerEndOfStream: CheckInFocus: NOT in focus. :-(

[drventure]

Here's the relevant log lines

2012/08/12  15:41:04.25   Info: FormActivate:
2012/08/12  15:41:34.59   Error: Video1PlayerEndOfStream: CheckInFocus: NOT in focus. :-( Focus stolen by stolen by frmInfo
2012/08/12  15:41:35.62   Info: FormActivate:
2012/08/12  15:41:38.28   Info: LoadVideo:  C:\Games\Videos\Arcade Collections\Mame\targ found
2012/08/12  15:41:38.28   Info: LoadVideo:  Playing C:\Games\Videos\Arcade Collections\Mame\targ.avi
2012/08/12  15:41:38.64   Info: LoadVideo:  Play Started C:\Games\Videos\Arcade Collections\Mame\targ.avi
2012/08/12  15:41:52.40   Error: Video1PlayerEndOfStream: CheckInFocus: NOT in focus. :-( Focus stolen by stolen by Engine18 has encountered a problem
2012/08/12  15:42:06.20   Error: Video1PlayerEndOfStream: CheckInFocus: NOT in focus. :-( Focus stolen by stolen by Windows Task Manager


It looks like something happens, which causes the initial error, then my plugin (engine18) throws an error and catches it, popping up a dialog, which then causes Mala to throw the "Stolen focus" error again.

What I'm not understanding is the meaning of the "Stolen focus" error in Mala? My Plugin definitely shouldn't be erring, so that’s my problem, but any ideas what "Stolen focus" means and why it would cause an error?