Garmin decided to try sending a boilerplate reply, telling me to do yet another hard reset. The last three I had done didn't help any so why would the fourth be any different? Oh, and don't forget to use an official Garmin power supply. *rolls eyes*
I told them, in a very nice way, to stop wasting my time and to get their engineers on this problem.
UPDATE: Garmin apologized for the inconvenience and offered to send me 5.40 to test. I didn't take them up on it since I had already put 5.40 back on from a back up of the 1300. I did tell them that with 5.40 on the 1300 I received no RTL Trap errors, and the screen redraw rate was greatly improved. The redraw rate isn't perfect but I can deal with the screen taking a second or two to redraw once in a while over the screen taking fifteen seconds to redraw every minute or two.
UPDATE #2: Garmin asked me if I had the error logs. I sent what I had to them, since I did a quick back up of the .System directory before changing firmware versions.
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