Hi Mac people, I'm a new shifted Mac user. Got a problem here: My DTZ-21000 Cintiq is flickering often (more when I do alot of activities on it or somtimes when a car pass by my work room) on all resolutions when I use it with my 2009 MacBookPro (3.06 Ghz Intel Core 2 Duo, 8 GB DDR3, Geforce 9600 512 - set higher performance on battery life setting). I connect it with mini displayport to VGA adapter. Cintiq is still responsive its just as if I was watching an image under a rippling pool water. This doesnt happen if I connect Cintiq to my old HP Pavilion dv4 (2 Ghz Core 2 Duo, 3 GB & GeForece 9200 Gs 512) via VGA. Heavy painting, car, plane all fine. Its just when it comes to 3d bit slow thats why I need it to work fine with my MacBook Pro. Wacom driver 6.1.5-2 on Mac 10.6.3 & 6.1.5-3 on Vista Home Premium. 1.What's wrong with my Cintiq - Mac setup? Its not the Cintiq since its fine on HP. Anyone experiencing this kind of problem? Whats the solution? Should I try connecting them using mini displayport - DVI? (I did not buy this since it was not available at the time of purchase) I'm in a country where reliable Wacom & Apple supports are non-existant. 2. Would this problem hazard my Cintiq hardwares should I keep going on using it with my Macbook Pro? Like I said it still works fine its just annoying. I will stop connecting it with Mac & back to HP if it will break Cintiq. I mainly use Cintiq for digital painting & 3d sculpting & image + vid editing. Thanks for the input. *Oh more info: when I 1st got this Macbook, I changed the energy saver setting from better bat life to higher performance before installing any aditional softwares/hardwares. Mac hanged for more than 35 mins it was just givin me blue screen & the spining rotation thing & went sleep. I clicked the power button several times nothing happened, but somehow it went okay. Could this affecting the gfx card? Is there anyway for me to check Mac performances including its gfx card? Thanks for the input.