HiMy only suggestion is, run without cursor tracking for a bit an see if that helps. I pretty much default to tracking off due to long habbit and pretty much never have this problem.
I don't know if it's as severe on my Macbook as it used to be on my old Ibook, but I got out of the habbit of leaving it turned on a long time ago and never really went back. Back then, I distinctly remember having the problem of jumping out of web pages and a bunch of other things.
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