Well it happened again. My 2610 was replaced by Garmin for loss of right tabs and fogging with a 2720. The 2720 fogged in warm weather, and was replaced by Garmin with another 2720. Now the replacement 2720 fogs in warm weather, but clears after an hour. Now in cooler weather the fog sections is real large, have not ridden enough in cold weather long enough to see if it clears. Currently there are around 60 days of warranty left on this one. The bike is kept in a unheated detached garage. Houston, Tx tends to the humid, temps range from 30F to 80F lately. Do you think I should return this one or just accept the fogging ? Comments, please.