My XNA gives an E68 when it's left inactive for some time and then powered back on again. The DVD drive also doesn't open every time it's about to get an E68
Run an ISO recovery to give it a clean install? Could also just be ready to b ded IDK :/ If you are using any shadowboot or plugins it could also be that.
Hmm, I've got it working before by attempting to force the DVD drive open, but no avail this time around. May either be dead sidecar, or just plain bad luck.