External Monitor on MBP (Invalid format error)

I searched the forums and couldn't find a similar issue so here goes. I have a late 2008 MBP with Snow Leopard connected to a Vizio(MODEL#VM230XVT)LCD 1080P HDTV. I'm trying to use this in "closed lid" mode and using Apple Bluetooth mouse/KB. Because, I didn't want to buy another HDMI cable I currently have it connected via VGA with Apple adapter (DVI>VGA) and a separate audio cable running to TV I have the Bluetooth settings set to wake the device. when I shut the lid the screen goes black either states "No Signal" or "Invalid Format". I have to disconnect the external monitor in order to see the MBP screen again I have tried using several different types of Resolution without success. I notice under the resolution settings it has a "useable screen size underneath it with certain dimensions" so if I set my MBP to max resolution I believe 1400x900 (guesstimate) and set my HDTV to 1920x1080 I think underneath the resolution box I get the "useable screen dimensions which are usually the laptops screen dimension" not sure if this plays apart in anything just wanted to mention it. The TV will display if I leave the lid open on the MBP and have a resolution that exceeds 1024x768 so I'm not sure why it won't display with lid closed as well. Any suggestions would be appreciated.

Then I'd…
1) Try reinstalling WoW and try to keep as few preference/game files as you can. Granted you need to keep your character and game play files etc etc so just backup the lot and restore as required.
2) Contact Blizzard and check their forums and see if they know anything about this.

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v470510c05 wrote:
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jvaughan68 wrote:
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External Monitor on MBP (Invalid format error)

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