Citrix Admins out there probably know the issue; a user reports a problem and you need to troubleshoot the problem on the specific server that this user was logged on to. Logging on with user credentials to a certain server is not that easy, unless you create/modify a published desktop (or published application for that matter).
I created a little tool which allows you to easily connect to a published resource on a specific server. You can download it from the Tools section of my site and it’s called ICA Connect.