Rho Elements and SiteMinder/Web Access Management

Does anyone have any experience with their customers using CA SiteMinder for Web Access/Security Login for their customer web apps?

My customer is using SIteMinder as a font end to their web apps for mobile devices, and we are experiencing intermittent login errors.

Please let me know if you have any experiences, good or bad. The customer has a week to figure out what is going on or they cannot move forward with Rho.