just got myself a core i5 MBP 15". First time mac user, long time windows user. i'm running into difficulties on doing something really basic.. which is installing and running new programs! for my media player needs I've installed Mplayer OSX. I've set my avi, wmv, etc files to use mplayer as default yet every time I click on those videos.. they don't run! maybe if i restart and I click on the file, mplayer would come up and play the video.. but after clicking other videos, nothing happens. Even installing it was a pain because mplayer would ask me to check for updates, and whichever answer I chose, it would crash. somehow I got past that. Installing firefox was also confusing. On windows I just clicked an exe file and let it install away. it seems the mac version of an exe file is the dmg file? after downloading it... I installed it and moved it to the app folder, then docked it.. but it every time i click the docked icon, it keeps taking me to set up. anyways, I'd like to make my first mac experience enjoyable and get over these set backs!