I've experienced this issue before, but last time it seemed to sort itself out quite quickly.

Basically when I'm driving, if I have built in maps on the screen the map just spins round and round and round, although it does follow me as I go. It can be quite distracting though, one of those things that once you notice it you can't take your eyes off it kind of thing.

As I say, had this happen once before a while back, it seemed to right itself quite quickly then. But this has been doing this for about a week or more now. I have to switch to AA screen in order not to see the map continuously spinning.

Anyone have any idea of a reason for it, or even a fix?

Sounds like a s/ware glitch to me. Have you tried a hard reboot?

If not, hold the power button (left end of volume slider) for 10+ seconds until it restarts.