Edit in Project Professional Greyed out.

Hi

I have configured Project Professional 2010 to connect to PS2010 in a Citrix Environment.

While I can easily edit the Proejcts Save and Publishing them through Project Pro by opening Project Pro directly, I cannot open the projects and edit in Project Pro via the PWA environment.

The Open in Project Professional options in Project Centre are greyed out. I am using IE 8.0 and logged in as Administrator

Any Pointers much appreciated.