hi. Unfortunally a strange issue here. I'm testing different resolutions by modifing config.txt according to the supported screen resolutions. Yesterday i tested 1920x1080 60hz and display_rotate=3. very slow but it was ok. 1440x900 60hz worked fine. Today after some other resolution tests, i can't control rotation anymore.. at resolutions 1920x1080, 1440x900, 1366x768.. sometimes "display_rotate=3" works, sometimes it doesn't. I can't understand what is changed. Last time I solved with a reset in recovery mode. But this deleted all applications installed. Is there another way to free cache or something similar I could try, without deleting apps? THX!