Exchange – OMA vague error

After a successful login to Outlook Mobile Access (NOT outlook web access), i get the following error:

A System error has occurred while processing your request. Please try again. If the problem persists, contact your administrator.

I haven’t been able to find any information from MS regarding this error, partly because it’s so generic. any one else find a solution to this?

There is nothing in the system logs relating to this error.. are there logs I should be looking in that I’m not?