Running up MacGPS Pro

Having found the unusual USB lead that came with my Garmin (they cost a lot apparently) I went to the MacGPSPro site and paid. I plugged everything in and got this... oh bloody hell... what's this all about?

I'm assuming that because I'm inside the Garmin was looking for satellites so didn't get round to noticing it was being "talked to" by MacGPS pro.

The second time I ran it 'Garmin' was in the left hand side of this dialog... phew!