HELP - inernal error 2711 - what does this mean?

Hi

I have Endnote XI on my computer and I’ve been trying to install Endnote onto my mobile phone but everytime I try to install the patch or update from within EndNote I get an error message as follows: Internal error 2711.

What does this mean and how do I go about fixing it?  

Please help.

Thanks in advance!

:o)