For your Surface Pro, try this, it may work:

http://forum.xda-developers.com/showthread.php?t=2171198

Mine’s an original Surface Pro. It’s been great, but I’m finding that it loses it’s calibration more quickly these days.

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David "Hyphen" Jaques-Watson ..at.. Beowulf Down (Tavonni/Vilis/SM 1520)
http://www.tip.net.au/~davidjw                    xxxxxx@pcug.org.au
"I file things in historical order, with a hashing algorithm of gravity"