Hello Surebrec

A clicking sound may be indicating a physical problem within the camera - especially if this is something that hasn't been happening up until now. You said that you have had it for a while but if it is under a year this may be something that is covered by the warranty. You could try resetting the camera to its factory settings to see if this rectifies the issue - but this usually will not rectify a physical problem.

Warranty or otherwise, you can contact Sony Customer Services to see if it is a physical fault that is relatively straightforward to repair. There is a thread in the forums with all of the information:

http://www.sony.co.uk/discussions/message/651957#651957

Thanks,

Simon