My Gadget Gallery is not working

Guys, I downloaded maybe 6 desktop gadgets on Microsoft’s site, and installed it. I put it on the desktop but then I remove some coz I didn’t like it. When I open again the gadget gallery (right click on desktop, click gadget) nothing happens. I even restarted my computer, but there's a download file after reboot. An html file from ieframe.dll. I have found fixes in some forums here, and tried them but still my problem exists. Help me please. Thanks in advance.
