desktop x help..

i need help i have download several different desktop x windgets and objects and only two will work.. i have like 4 or 5 others that won't show up on my screen, it says they are on there when i try to load but you can't see them....i have done... reboot, cold start, clean uninstall, reinstall, etc.. but nothing is working, i left post on a couple of them but that was yesterday and i still don't have a reply... am i missing a step or what is happening, cause i can normally get these to work, and when i go and add some that is already on, they will load but my new downloads won't

please help me

pandrous