Having an issue with random workstations using eSynergy. A user will go into an account's workflow, and will see a big message on the screen that says "One moment please...", as if it's waiting to load. It doesn't ever load, and none of the items are acessible. Some of the buttons at the top are also not working (Such as the "New" button to create a new workflow item).
They can access workflow items using the Workflow search screen apart from customer accounts, but they are unable to update/save the workflow items.
I have tried different browsers (IE, Firefox, Chrome), different versions of said browsers, restarted IIS on the eSynergy server, rebooted the entire server, rebooted the individual workstations, cleared the internet cache, tried switching to and from compatibility mode, etc., so it seems just random, no rhyme or reason.
If a user is experiencing the problem on their workstation, and I log them into the workstation of someone who isn't having the issue, they don't experience it then either. It's affecting about half of our staff... I even checked which network switch each was connected to, but two people on the same exact path to the network hub, one is having the issue and the other isn't.
I even have two virtual copies of the server running on separate VM hosts, and the same users still get the errors no matter which iteration they're connected to. I cannot find any instance of others out in the world having this issue, and I've tried everything I can think of. If anyone has any ideas on how to take care of this, it would be greatly appreciated. Thanks.

Update: I was getting a pop-up in IE to update Silverlight... I updated it on a machine that didn't have this problem prior, but now it does. I uninstalled Silverlight, and the issue remains.