Does resetting a mac reinstall the original os software. Reinatalling the os alone does not erase data.
Having same problem with FR 410 since software update to FR 410 v2.3 and Garmin Express 6.11.1.0. Have reinstalled and undertaken factory reset on watch - not resolved. Garmin Forerunner 610 - Garmin Swim The first time you use the app you will need to configure the services you use and download all the activities stored in your ANT+ device.
Ok the instructions that come with the Garmin forerunner are completely wrong, the CD is useless (it has the manual but no software) and the Garmin support website is not much help either. There are all sorts of discussions on the Garmin site for Mac users about ‘it does work with Lion’, ‘it doesn’t work with Lion’ and so on. At one point it even had me downloading a PC .exe file!
The answer is that it  does work very well with OSX but there are two separate pieces of software that need to be installed.
Garmin Forerunner 610 Software Mac Review
1. The first piece of software is a Safari/Firefox/Chrome Plugin that lets your browser talk to your Garmin. You can download it from garmin.com under ‘Support’ menu then ‘Software’ then ‘Software for Mac OS’ then ‘Garmin Communicator Plugin‘.
When it’s downloaded you can test it on this test page:Â http://www8.garmin.com/products/communicator/test/
2. The second piece of software is a USB driver that talks to the Antenna. Again, you get it from ‘Support’ menu then ‘Software’ then ‘Software for Mac OS’ then ‘Garmin ANT Agent’. When it’s downloaded you can ‘pair’ with your Garmin device as per the instructions.
Garmin Forerunner 610 Software Mac Reviews
Finally if you want you can go to the mac app store and download the Garmin fitness software for free.