Don't get me wrong & I'm not trying to be the guy that complains all the time, but latest firmware gave me the most trouble.
When I opened one folder there was some scaling?/tearing? not sure of the correct term, but certain lines trying to tear across the screen. If I opened more than two folders there were ghost boxes popping in & out and the other thing I mentioned was much, much worse.
All this happened whichever screenmode I chose.
Gone back to the original firmware again & it's certainly the most stable so far when using workbench (or package installs over it).
Thanks heaps though...we all love the fact that this product has such ongoing support & that you guys are trying to make it even better with new firmware...it's just that I'm currently finding the first to be the most stable on my own A1200.