I have an employee that uses a specific web site that requires a password
and username. In order for him to get into the site he has to enter the
information twice. The first time it takes hime back to the login page
with no errors and the second time it will actually enter the restricted
area of the site. What could cause this? He has no problem when he is
outside the company firewall.

This is the site that has problems:


No other sites have this problem that I have noticed internal to our

Any ideas?