I did a bit of investigating but not understand
Fixing 406 errors - general
This error occurs very infrequently in Web browsers, because most browsers will accept any data returned from the Web server.
If the client is not a Web browser, then anyone can only investigate the problem by looking at the Accept headers generated by the client system and the data stream returned by the Web server. If you do not have access to the source code for these systems, the only thing you can do is refer the problem to technical support people at the companies that developed the systems
http://www.checkupdown.com/status/E406.html
can you help me i re-install new filles still the same