basically says it all
tries to shut down for hours, until I manually shutdown
then on restart I get error on shutdown
any ideas?

Remove 3rd party apps with filter drivers (like antivirus, firewalls, antispyware realtime apps), go into msconfig and disable all non-Microsoft startup items and services, and try again?

There's only a few things that can cause a shutdown to fail, and most of them are either services that never shut down, or drivers that refuse to unload.