MBA Thunderbold port to VGA projector. Lost touch pad pointer.

I used a minidisplay port to VGA adapter in the thunderbolt port. The projector recognizes the MBA and I can see the display preference panel on the projector screen. On the MBA screen I have lost the mouse pointer, but can see it on the projuected screen. How can I adjust the MBA screen to use the touch pad?
Thanks

It sound like the calibration screen and the touch "focus" has been shifted to the "primary" display - which is the last added display adapter. I don't have the setup to test, but you might be able to fix by selecting the Touch panel as the primary display (maybe). You may be stuck because the USB adapter will always be enumerated as the last device.
Perhaps...
1) Plug in USB adapter to enable display.
2) Go into display options and select Touchscreen as Primary and make sure "extend desktop" is unchecked.
You may also be able to trick the system by going into DM and removing reinstalling the real primary display adapter.
If all fails, you should be able to unplug the USB device and use MS system restore to go back when it was working properly.
Of course, I am saying all this without having the hardware in front ofme. I've played around with mutiple displays enough to know that you get into some funny behaviour when you have two distinct video adapters installed in the system. The best multi-display solution are those driven from one adapter - one video card with an HDMI and a DVI for example.
If you figure this out, please reply back. I'd like to know if it is possible to keep touch while using another adapter.
... an HP employee expressing his own opinion.
Please post rather than send me a Message. It's good for the community and I might not be able to get back quickly. - Thank you.

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MBA Thunderbold port to VGA projector. Lost touch pad pointer.

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