I have had an SL 5500 for a few years now, and about 6 months ago it started this behavior where I after I hold the cancel/on/off button to suspend the Z, it won't come back on when I hit the button again. In order to get it to turn back on, I have to take out the battery, hit the reset button, put the battery back in, hook up the AC adapter, and then turn it on. I have tried flashing to a couple differnt roms (Cacko, sharp, OZ), and recently I replaced the battery. Nothing seems to make a difference. Anyone have any suggestions of what I can do, or things to look at. I would just go buy another PDA, but it's not in the budget at the moment.