IE "done, with error on page" -- HELP!

Internet Explorer 6 has gone crazy. I solved a Windows 98 problem by getting rid of DownloadWare, nCase problems and adding Ad Aware. BUT - biggest problem that I've had for a couple of weeks and that the above solution did not help at all is that page after page on the web is loaded with the yellow error sign at the bottom and "Done, but with error on the page" or simply "error on the page" and a lot of the words my be gibberish or what is the most obvious is I can't do a search on that page, or it won't open a drop-down menu, other items are obviously not loaded on the page, etc. If it's just a page with facts, the page is displayed fine. If they are complicated pages they consistently do not download correctly.

HOWEVER, I stumbled across a newsgroup item that talked about IE repair that said to go to Start, Run, and type

rundll32 setupwbv.dll,IE6Maintenance

and I did and hit it to run REPAIR and it did and everything seemed great when I went to the same pages with Internet Explorer that didn't open right previously.
BUT -- today, all those same pages are opening with the same ERROR ON PAGE note -- thus, I can't get to hotmail, I can't open all the info on your website, I can't get to support.microsoft.com/newsgroups and look for the answers to my previously posted question on this same topic because that's where everything is filled with 20% and other signs in the message, etc.

How can this be? I am just a simple person trying to use a computer. Can your complex minds tell me what to do in simple language?