I have installed VPN and Remote Desktop to allow me to access my work remotely on a remote

I am running a Sony Vaio PCV-V1 Computer with Windows XP Home

The VPN and Desktop works fine but my machine will no longer sleep or hibernate

I get the message:

The device driver for the WAN Miniport IP Novell Virtual Private Miniport is preventing the
machine from entering hibernation


I also have a conflict with Sony UPnP which crashes on startup

Any suggestions?