So my LW was working ok last week and now I am unable to connect. I feel like I have done everything possible and the program just does not like me.

LW 4.4.0
J2SE Runtime Environment 5.0 (but I am not quite sure if it is running)
Win XP SP2 (I think?)
University Wireless Network
and VPN (both of which are set to allow Gnutella and LW)
Modem speed (I have no idea, sorry..)
27.8 GB on my C drive with 20 GB remaining
Deleted and reset preferences folder (about 100 times)

Should I uninstall and reinstall AGAIN?
Your advice is always appreciated!