Many people have went to the live section in games with their modchip on and didn't realize that MS sent some info to your xbox that now gives you a Error 21 when you try to go to your msdash (but evox still works fine). In most cases you just send your backed up C: from your computer back to your xbox. But i have read a few threads where people didn't and they think they are screwed. Slayer's new autoloader 2.5 has a option to replace/fix your msdash. This will indeed fix this error 21 but after it fixes it you need to rename the new xboxdash.xbe to whatever matches up in your evox.ini file.