I've been running AutoCad 2012 for some time now without incident. Just recently while working it intermittently "hangs". There is no way out of this but when using Ctrl Alt Delete, it still sees the file as being open and will only let you open as Read Only. However, when then trying to Shut Down entirely, computer stops responding. Need to then hold down power switch for a shutdown then re open, log on, etc. Files are seldomly recoverable and work must be repeated. This is extremely annoying and I save every 5 minutes or so. There is no similarity as to when this happens but it is more often than not lately. What changed to have this occur????? I have done nothing new to my computer.
Does anyone know or is anyone having the same issues?