I am now on my second Garmin 530 after returning the first one, but now I am finding exactly the same issue with the second one. I already went through some steps of deleting a file and a folder and then restarting as requested by Garmin Tech support. I did a short trial ride with 2 or 3 stops, and it paused and resumed just like it should with the auto-pause set at 2 mph. I thought all was good, so I started out on a longer ride. After about 15 miles I stopped for 30 seconds or so at an intersection, and when I started back out again the speed stayed at 0.0 and the distance stopped going up. The only way I could get it to restart was to force a power down and then restart. After doing that, it recorded speed and distance for about 5 miles, then went back to showing 0.0 for speed while I was still moving. I did a power down once more, and this time it lasted for 1.1 miles and then went to 0.0, again while I was still moving. My firmware is at the latest version as confirmed by Garmin tech support, and I am not using any speed sensors. My wife has a Garmin 130 set up so that it also has auto-pause turned on, and it is working just fine. I don't consider turning auto-pause off as a solution, and not sure if it would even help since it also stops recording while I am moving. One other odd thing I noticed is that while it was stuck on 0.0 for speed, when I went to the map screen the view on the map was jumping around randomly and it said "ready to navigate" at the top of the screen instead of showing my current location. So I am about ready to give up on Garmin and try some other brand at this point unless I can find a solution for this issue soon. Any help or suggestions would be appreciated.