Has anyone any ideas as to why sometimes my web site will develop a mind of its own and navigation buttons will swap titles? What actually happens is that a button text on one page may swap itself to another or change to an image such as a side panel colour bar. Reloading the page to the server will clear the problem on one page, only to have it recur on another at the same time. Same result with explorer or Firefox, but google chrome seems worse. Leaving it alone for several hourse sometimes helps, and then it will be ok again for months. Any suggestions?