2 displays in "Displays" system preference even though only 1 is connected

My computer persistently thinks that there are 2 displays connected: color LCD and VGA display. I only have, and ever had, one display: a 20" cinema display.
I've dumped com.apple.windowserv.* pref lists, restarted the computer and a couple of times, that did the trick.
BUT, the problem has returned!
Any help is appreciated,
Thanks in advance,
Artur

Hi AD,
not dealt with TRIP object,
but the CHANGED event, is it created by you thru SWEC?
If yes, check if the entry has OnChange and not Create.
Hope it helps.
Aditya

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