For some reason I can't get into certain .BIZ web sites can anyone let m know why or how I can fix it? Thanks

Could you give us an example of one of the sites that you cannot access so that we can see whether it is a problem with your PC or with the site? Also, your subject line says "sign on" - are you trying to log into these sites with a username and password or are you finding that the sites don't display anything at all?