Recently I found a forum on another site dedicated to "errors and known issues in AX". Although I mostly follow the Dynamics Communities Forums (AX and GP), what kind of a consultant would I be if I ignored valuable tools I could have in my virtual tool bag?
"Microsoft Dynamics AX/Axapta Known Issues and Errors Forum"
http://dynamicsuser.net/forums/122.aspx
...just remember you found it here ;)