So Install 4.5 a few minutes ago, and at first all is well. I change my theme back to Minimalist, and BAM! "App Error 523". Since it is now my set theme, i get it as soon as I reboot, and can't even remove it via the desktop manager, as I can never get all the way up and ruinning! Any ideas?? Thanks in advance!!
search your PC for the latest saved "*.ipd" file... the OS backup will have the name "loader" in it, could be in your My Docs folder or the Program Files/Research in Motion folder. After wiping and reloading the OS, you can backup from there all your personal data, settings, messages, calendar, etc.