I have recently purchased a 2.66ghz imac and it has been flawless, apart for one problem. I visited this site in safari for some music work, http://www.8notes.com/scores/1476.asp?ftype=gif, which upon opening plays a midi file of the song 'Auld Lang Syne'. After closing all programs the midi file of the again starts up upon opening dashboard, and stops playing when i exit dashboard. This happens even after resetting safari and restarting my mac! 
Note that i didnt didnt download the midi file onto my computer, just played it in safari. I have searched the internet and it seems nobody has had a similar problem.
If anybody could help I would be extremely grateful as i'm sure you can imagine how annoying this is.
EDIT: I just realised the website runs a Windows Media Player add-on, could this be interfering with anything on OSX?
Note that i didnt didnt download the midi file onto my computer, just played it in safari. I have searched the internet and it seems nobody has had a similar problem.
If anybody could help I would be extremely grateful as i'm sure you can imagine how annoying this is.
EDIT: I just realised the website runs a Windows Media Player add-on, could this be interfering with anything on OSX?