Last night I put my Garmin 110 Forerunner on charge. This morning I went to pick it up and noticed that the display was blank. Thankfully I found a solution. Leaving the watch on charge I pressed the light button for 10s and then released. The display reappeared and the battery indicated 100%. This worked for me, but I guess if it did not then, I would have had to contact Garmin support… Now I am going to see if there is a firmware update which will hopefully resolve this bug.