VPN Help from my home computer

I have VPN access set up to access my work desktop from any other computer. I am able to log in from multiple other computers.

However, I cannot log in from home. I have a Dell running WindowsXP. I have disabled all security and pop up blockers. I receive this error message when I try to use VPN ids_junipersetup_general_error

Any help or direction? Our VPN contact states it’s not their problem because I can access from other computers. Our IT department states it’s my computer not theirs so they won’t troubleshoot.

HELP.

Thanks.

Ganell