We have a windows 2000 server running as a VM on a server 2008 box using Hyper-V. This machine (2000) runs a database application that our company uses for billing, patient account tracking, and generating reports. All the accounts are set up as local accounts to that machine (though it is a domain member), recently we've noticed that 3 or 4 times a day 2 of the accounts that have admin rights are losing these rights. If I check on them at 7am they will have the rights, but later on at some random time (we are still trying to narrow down exactly when it's happening) they admin rights are gone. We are all stumped as to why this is happening and would appreciate any ideas. Thanks.