Bodged it with a program that just opens my "Z:\" and closes it again at startup. Ideally I'd like a more concrete solution so if anyone has any ideas please...

Further investigation leads me to believe this is something to do with the network connection to the drive that has the database on.

When I open "My Computer" and access the...

Reinstalled Drivers....

Tried Changing it to a system DNS....

No joy on either... constantly rebooting to test it isnt fun either, but thats the only time theres any problems.