Internet Explorer

My menu items (file, edit, view, favorites, tools) have disappeared. 

IE gives me an error message when I open or close it, or refuses to open.

Right click on the IE7 icon on your desktop and select Start Without Add-ons

Select Tools from the Menu Bar and then Select Internet Options Then Select the Programs Tab Click on the Manage add-ons button

Go to the bottom of the list and select the one that says Yahoo.
Click on the radio button which says Disable.
If you have multiple Yahoo entries disable them all.
Click OK twice to close the windows.

If you wish to use the Yahoo tool bar, you will need to reinstall it.

When I try to open some websites I get a warning message.

Some warnings prevent you from going to sites that may be malicious.  The warning is based on a Security Certificate that is presented by the website you're trying to visit.  If there is a problem with the certificate, which is a warning sign of a redirected or malicious site, Internet Explorer 7 displays this warning message that forces you to click "Continue to this website (not recommended)" in order to visit the site in question, and will turn the address bar pink to indicate that you are at a website with an invalid Security Certificate. 

If you encounter this problem but know the site is valid, instructions follow on how to disable this warning.

How do I skip the Security Certificate warning for sites that I visit frequently?

If the site has a permanent Certificate warning, and that the site is a valid site you can disable the warning page.

First click "Continue to this website (not recommended)" on the initial warning page (shown above).

When you get to the site, the address bar will be pink, and there will be a smaller box to the right that says "Certificate Error" (shown below).  Click "Certificate Error".

You will then be presented with a box that says "Untrusted Certificate" at the top.  Click the "View Certificates" at the bottom of the box.

In this box, you'll need to press "Install Certificate" to start the "Certificate Import Wizard". 

Press Next twice, and then press Finish until you are presented with the final warning screen. 

Press Yes to install the Certificate when presented with the final Security Warning. 

You will be notified that the Certificate has been installed, press OK to close this box and you will not be redirected to the original warning message on future attempts to access this site.