We have around 6 users who send invoices to customers through email in Dynamics. Generating the email will work 3 times, 5 times, it varies... before Dynamics will completely freeze up generating the invoice to email. When it freezes it shows the "Generating E-Mail" window, but no email is generated, none sitting in the Outbox, nothing... Dynamics is totally frozen and will not continue or un-freeze (one user left it frozen for 45 min). From this point we have to open Task Manager and end Dynamics.exe.
There doesn't look to be any excessive CPU or memory usage at these times from Dynamics or any other application. This is on a Terminal Server (or Remote Desktop Services) on 2008 Std R2. There can be around 20 users connected to this server at a time, but when this happens nothing else seems excessive or out of the ordinary. I have unchecked the option on the Adobe PDF printer to "Rely on System Fonts Only", no difference. There was a PDF-XChange printer installed with our Mekorma MICR install, and this has been uninstalled as well.
Any other ideas on where to look?