I FOUND IT!!
when the unit is on press the on/off button once for on,and again for off,its bright green on mine.
Now i am happy i bought one :)

I have tried today to download the updated software for the training center but just keep getting an error message.
Win zip self extractor invalid command line parameter [ restart]

Has anyone else had this problem?

I've tried to download updates for it several times this year & they tend to fail.

I've been using Sport Tracks since last December & find it much better for analysis etc. The only time I use Training Center now is to send courses etc to my 305.

Cheers for the link Nobby i will give that a try!