I installed SP3 for BorderManager 3.7 yesterday and we seem to be getting
a lot of 403 Forbidden messages when you first launch IE. If you then
refresh the page all seems ok. Workstations are a mixture of 98/XP.

I increased the setting for 'Time to wait for Single Sign On reply' from
10 to 15 seconds but that does not seem to have made any difference.

Anything else to check...?