I had some strange behaviour with AM, so I completely updated Raspbian, Retropie & AM. The updates fixed the original issues, however I now have a couple problems come up as a result.
1.) The overall resolution in AM is very low after updating everything. I tried looking for resolution settings in raspi-config, but it's not there. (I also tried updating respi-config first, still not there).
2.) When running any game, any emulator, the entire display has a high frequency jitter, up and down. It's a very tiny amount, but enough to notice, very annoying to look at.
I'm going to try using a different monitor/TV later today and see the jitter follows. Any thoughts on how to correct these two issues?
Thanks,
-Mike