AX 2012 R2 Script Error when logging onto the AX Client

My client has several of their AX users that are getting a script error that points to the EP and role centers when the log into the AX Client. The one user is not even assigned a profile. I cannot reproduce this myself (I have given my user the exact same AD and AX security and profile) but several users have reported it. Once they click NO, they can continue to work just fine in the client. The verbiage of the error is (screenshot attached):

Script Error

Line: 1412

Char: 294

Error: Unterminated string constant

Code: 0

URL: http://EPSERVER/sites/dynamicsax/enterprise%20portal/EPDefaultRoleCenter.aspx?---and a lot of misc characters after

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