page not found

........Whenever I click on any post I get the following screen shot and to open the said page I must click the "Back" button, any idea how to prevent this form happening please? Dave.

 

Try downloading Ccleaner.

http://www.piriform.com/ccleaner/download

 

Thanks.........just ran CCleaner but the problem persists any other suggestions please?.........
edited....
the thought dawned on me that the problem mught lie with Firefox so I have just logged on using I E and the problem does not bug me so will simply resort to that browser in future. Many thanks Dave.

 

Interesting I use Firefox and have not encountered this problem.

 

Same here