I am getting runtime errors on several pages in IE7 - they are not loading the way they used to (and have done for years). Some things just don't load at all, one particular problem, preview panes do not appear when I hover over a headline like they used to.
I get error messages both in the forms of popup windows (unless I have debugging disabled) and in the bottom left hand of IE's status bar. The errors say either: "java script:void(null);" "item expected" "'item' is null or not an object" or "class not registered"
I have uninstalled all previous and current versions of, and reinstalled, java and flash. I reinstalled IE7, I "reset" IE (meaning it deleted all temp files and history and set all prefs back to defaut), I have disabled and re-enabled all add-ons one by one, I manually deleted all temp files, cookies, and history, I used CCleaner on my system, I have run at least two types each of spyware and antivirus scans, I changed my security settings to lower, then to higher, then back to where they were, I have made sure in my advanced tab that java is enabled -- I have done everything I can think to do other than debug, because I have no idea how to do that.
I have IE7pro as an add-on - it has an ad filter/flash blocker. I noticed that at least a couple of the sites I've had problems with were listed on the ad filter (I tried the filter when I first got IE7pro, didn't like it and disabled it weeks before I started having this problem). But, just in case, I disabled and enabled the entire add-on, then just the ad filter and flash blocker, and manually deleted all of the ad filters listed. Didn't help.
Any clue what I can do?? Thanks so much!!