I just opened Google Sidebar. Most of my usual gadgets were missing. I looked in the folder "My Google Gadgets" - they appear to be all there. But when I try "Open with Google Desktop", for a gadget missing on the sidebar, I get "Unable to verify integrity of the gadget". Also, when I try to install any Google gadget all I get is "Error Adding". What went wrong? - it had all been working nicely for a year or two.