MacBook Air + Vista + External Project == 640x480 only

Posted:
in Current Mac Hardware edited January 2014
Having a problem with my MacBook Air when it connects to an external display. Basically, the only resoution it provides me in 640x480. Tried two different projectors. The problem is only with Vista - OSX seems to work fine!



If I connect to a standard monitor, then I have full resolutions.



I've applied the DisplayPort > VGA Adapter firmware upgrade. Also downloaded the latest beta drivers for the 9400M.



Does anyone have any ideas?



Thanks



Ben
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