SXGA+ Projector resolution not supported ?

I have a projection design f30 projector that has a maximum native display of 1400 x 1050 SXGA+
From a PC it will display this resolution no problem however with a macpro or any laptop i've tried the most I can get is 1280 x 720 ?
Is their anything I can do to rectify this ?
Many thanks
Matt

Dual Link DVI is used to support displays that are very wide, such as the Apple Cinema display. These displays divide the LCD into left and right zones, (as if it were made of two LCD units side-by-side). The control signals are used for both sides, but the data are provided for the left and right panes separately, on two sets of pins in the cable.
A dual link DVI cable/port must have all pins populated. A single-link DVI port/cable often has three columns of pins near the center missing.
You can only Mirror resolutions that also work for your built-in display. If your built-in display cannot do this resolution, then the setting will not be available for the external display.
When you switch to "Extended Desktop", many more resolutions will become available for the external, because the built-in and the external can each operate independently. Each display in "Extended Desktop" will be looking at a portion of a very large Virtual Desktop, (i.e., they will not hold exactly the same picture.) You can then use the arrange button that appears to position the two displays into the Up/Down Left/Right orientation you prefer.
The windows you wish to display can be moved to display completely on one display or the other, or overlapping both displays. This feature works for all well-behaved Mac Applications.

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Message was edited by: jonb86uk

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I understand that it is an Ipad problem but what can I do? I am testing it on an Epson projector. projection is fine until projector does an "Auto Setup" then the Ipad screen shows " This accessory is not supported by this Ipad" What is going on? Is there a fix? I am using VGA input to the projector. I can't plan on giving a presentation until I know that things will work.

"mode not supported"ATV3 VGA Kanex ATV Pro

hi
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Digger65 wrote:
thanks
bit of a shame as this cable/convertor was recommended on these boards by another user and was definately not cheap
I may have recommended this based on my own experience with it and the fact that it is designed for AppleTV specifically and is actually sold by Apple.
Have you contacted Kanex support to query what the issue might be?
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