Header variable problem using Siteminder

Hello guys.

We have an issue where we have ColdFusion server installed on Windows with IIS 5 and another install on UNIX with Iplanet WS 6.0. Both environments are running Siteminder WebAgents. When a user logs into siteminder on the UNIX box everything works fine but if the user navigates to the windows server in the same browser session the siteminder cgi header variable fails. What happens is that the header variable format changes.

Starts as sm_user = *

when the request is passed to the windows server the variable format is sm_user : *.

The "=" sign changes to ":", So the app fails reading the variable and throws an error. I have no idea how to resolve this.

If the user logs into the Windows environment first then traverse to the UNIX environment the variable syntax does not change and everything works appropriately. Any ideas?

Thanks