Hi, here is an update, I uninstalled Chrome with Revo uninstaller and reinstalled a new Chrome program, unfortunately that did not change anything and the dashboard still has two sort of greyed out arrows.
If I open windows explorer and then click onto a folder with subfolders the left hand blue circle with the white arrow lights up, if I next click a sub folder the folder will open but the back and forward buttons are greyed out, and for all sub folders and contained files which I open after that the back/forwards buttons are greyed out, until I close down all the open files and folders using the X button until finally I reach the first folder which I opened and the left hand blue button is live and if I click on it : it will return me to the Libraries page.
Regards Robert.