Ahhh... The dreaded UAC..
No, It was my fault that the music wouldn't playback. I had ripped some iTunes files to MP3 and put them onto a cd. Problem was when I burned the CD, I mistakenly picked up the original files instead of the newly ripped MP3 files. I then imported these files into the Mamba folder thinking they were MP3 files :0
Once I loaded the 'proper' MP3 files everything worked fine
Still got the message though.
Jem