ok, so a lot of info missing. Im going to throw out some questions and steps to help narrow the issue, you may have done these but not listed.
You want this monitor on a 64bit os right, but why?,
Have you tried this monitor on win7 yet?
Have you already hacked it out of its frame and installed it into a dash or is it still fresh out the box?
On my custom frame I have the lcd kinda tight to the top left so when it gets cold sometimes screen gets pushed up there and my mouse pushes in wrong spot like yours but I just have to push on the top left a little to loosen it up.
List what OS you have tried so far, if only xp I would recommend installing on a win7 machine your problems may just disappear.