Hi, I just finished installing Iatkos V3 10.6.3 on my Aspire 4736. Everything works perfectly out of box. Except for card reader, haven't tried it yet. Only problem I have is with Preview, when I click to open a photo, Preview starts but only shows a blank screen. I have read somewhere to delete the com.Apple.Preview.plist files in the /Library/preferences folder but there are not any there. Can someone help me shed some light on this? Thank you.