My Xbox has been acting strange lately. I can get it to work most times, but sometimes I get error codes 21 and 13. I know these both relate to the dashboard, but I have no idea why it is happening. I have a softmod done by Splinter Cell and I have EVox as my dashboard. I can still get games to boot without a problem. Right now it is working fine, but when I go to DVD2Xbox or XBMC, then I try and go back to the dashboard, I get an error. Some of my games freeze, some of my movies freeze, and most times I can't even get XBMC to work at all. Aside from starting over from scratch and completely redoing my softmod, are there any other things I might could do to fix this? I hate to lose all my current games, data, etc. Thanks for any help that anyone can give me.