Sidebar won't look for or load new gadgets and some current don't

I have six gadgets on my sidebar of these the thesaurus and the redirection

to Google Ebay etc have stopped working. All the others that I tried from

those previously downloaded are fine. These include a weather report and a

radio.

Also I can't laod new gadgets from the net either from my current gadgets

bank or directly.

Anyone got any ideas.