I have a 2000IVS with a NEW AD-8 VM attached. Problem I have is that the VM starts this error routine randomly and locks up the system. The message is that "I don't have enough memory to run Defrag"???? and then it tries to replace some files and the system won't let it. It worked for about a week then all of a sudden this error comes across and it won't stop. I have tried changing the OS surrender date but it still goes into this routine. Also when I installed it I have an Activation code but it never asked for one...What is the code for? and How would I enter it...just in case this is the problem..