I got an N800 today from ebay. I turned it on to check the battery level, which was fully charged according to the indicator. I played with it awhile, then went to the computer to update to OS2008. After connected it to the computer and turning it off, following the instructions on the wizard. Then, it wouldn't turn on again, even after disconnecting it from the computer. I tried to charge it (I was going to anyway since it says you need a full battery) but I did not get any progress indicator. I disconnected the battery for a few mnutes as said on this forum, but that didn't help. Any suggestions?

Thanks!