Problem with view 2nd page of products in Back Office

[WildeThang]

Greetings all

Firstly may I say Presta Shop - the greatest shopping cart ever!!!!!! You guys have done a excellent job

Ok to the problem at hand

I have a few clients using Prestashop and they have all noticed that they get an Internal Error when attempting to view products via the pagination controls ie If you try to go to Page 2 of products they get the following message

Internal Server Error
The page you requested could not be served. This could happen for a variety of reasons, including:

* A CGI script failed to produce any output.
* The server is incorrectly configured.
* The server encountered a critical error.

There may be more information about this error in the server's error logs.

Any assistance would be great

Thanks