MiniDisplayport issue with QuickTime

I already updated the firmware of the MiniDisplayport-to-VGA-Adapter but there's still a turning black of the screen from time to time when I use QuickTime and the laptop's screen is shut. Anybody else with the same problem and hopefully with a solution for this ?!
best wishes and thanks in advance,
daniel

Hi iPodUser - I'm having exactly the same problem with my new iMac Duo. I remeber a while back (the last keynote I think) I couldn't get a connection on my old Mac so I followed some suggestions and changed Quicktimes transport setup (in advanced tab of quicktime prefs) to HTTP and it worked perfectly.
I tried this on my new iMac but seem to have uncovered a bug!? I switch the transport setup to HTTP/port 80 but quicktime refuses to remember and reverts back to Automatic transport setup. I'd be very interested to see if you can select HTTP and whether quicktime remembers it.
Curiously I opened quicktime using Rosetta and the Macworld Keynote streamed perfectly but used an incredible amount of CPU. However the transport setup bug!? was the same.
Can anyone with a new intel iMac and a spare minute please see if they have the same problem.
Many thanks
T.
iMac 20" 2GB RAM Mac OS X (10.4.4)

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