I'm using AutoCAD 2008 and periodically my autosave will reset itself by unchecking and setting the time interval to 0. I check every now and then for this to happen but am caught out occasionally when I need to recover a dwg when the software locks up or crashs. Anybody have any ideas? I'm an a managed network and some other users sometime find the autosave setting disabled also, but it does not seem to be network wide when it does occur.