I'm rather new to Mac, so I'll try my best to describe the problem in words that sound sensible... I opened Safari the other day and first discovered that YouTube videos were no longer working, yielding an error which I can't currently remember and am too lazy to find. Also, Flash things on the sides of pages were not working, etc. Thinking that somehow it had gotten uninstalled (which wouldn't make that much sense; the last thing I did to the computer was install HandBrake like a month and a half ago), I went to download it again, and at the end of the process, got this error: 1008:5,-5000 Access denied error and then: You do not have enough access privileges for this installation. I AM the administrator of the computer as well as the only user. I've checked in the "Internet Plug-Ins" folder, and I always see "Flash Player.plugin" or whatever it says; it's been there the whole time, but it never shows up in the "Installed Plug-Ins." Now, currently, I'm able to get Flash to work and show up if I quit Safari, go through the installation process, and just minimize the install screen and open up Safari when it comes to the bit when I get the errors. However, this is time-consuming, probably very unhealthy for the computer, and makes the fans go crazy. If you have any suggestions, please post them, and please try to do it in layman's terms. And, sorry for the English.