I just picked up a Refurbished 2010 15" MBP with the Hi-Res Screen and I have a problem in that every time I install flash I get laggy/chopping inertial scrolling. (Regardless of if I am on Integrated or Discreet Graphics, it's only slight less laggy on Discrete). If I uninstall flash I have smooth as butter scrolling again. This applies to both Safari 5 and Chrome, both react the same. So far the only solution I've found is to install Click2Flash to block flash on websites which with it installed I get my smooth inertial scrolling back (That or uninstall Flash completely). Is there something wrong with my MBP or is there a permanent solution to this? Does this happen on anyone's 2011 MBP? Thanks for any input!