I am trying to install turbo tax 2011 on my imac, Just installed SL and now can't install TT- get code 36. I watched a video on UTube advising to use utilities/terminal dot_clean space and the drop the file or enter the path. I can't do that because the file is not on a drive. It is on a dvd that I am trying to install. I have never had issues like this with turbo tax. Ever since I loaded SL, I have had numerous issues with simple tasks. Please advise proper steps to allow me to install TT. Much appreciated!