Hi everyone, long time lurker, recently joined. Question about my 2010 21.5" iMac video card. When I run 4 or more filters on Pixelmator on my base 21.5" 2010 iMac on a downloaded image, the image pixelates and this bleeds over into Safari, Pixelmator etc. I am wondering since my machine is getting up there in years, is this the video card? Here's the sample image (ran Vintage > Gloom, Fog, Light Leak filters) I quit and restarted Pixelmator and the tool menus are pixelated. I've attached the image post pixelation and my 2010 iMac video card info. I restarted the mac and tried again > got the same pixelated result after running four filters, this seems to be exclusive to Pixelmator which I've been upgrading for the past 3 years. I am running Mavericks and have 8gb of ram installed. Any suggestions would be great. Thank you very much.