Mattyc, I'm really not following you around, just happened to notice your reply to both of these threads with the same problem, so I'll give my same answer in case yours doesn't work
I don't think the connections are mapped (net use) connections.
If not, try this:
Click
Start
Type
View network connections then click on View network connections at the top.
Right click the connection you want to get rid of and click
Delete.