Hi Chico,
there is a list of improvments with every update.
Once on the update list page, scroll down to instructions. There is a box which says:
OS - Versio - Size - Description.
Under Description click: see Version Up List.
There you'll find the Update list.
Regarding the screen, I've heard on the German forum that it might be a hardware problem. Apparently the processor sometimes can't handle all the data we are putting in.
Hope this helps
Eric
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Genos, PSR-S970, TC Helicon VoiceLive3, Mackie 802-VLZ3 Mixer, 2 Bose L1 Pro16, Electro-Voice ZXA1 Subwoofer