Screen size
thread779-822460
Try this.
Tools/ Internet Options/ Accessibility
then check, "Ignore font sizes specified on Web pages"
Specifies whether you want Internet Explorer to always use the font settings you choose. You can set font settings on the General tab by clicking the Fonts button. If the author of a Web page chooses different fonts, the settings you choose here will override them. You cannot change the size or color of graphics.
Make sure your options in IE/ Tools/ Internet Options/ Advanced are correct.
Uncheck the boxes for "Install on Demand" for IE and Other programs (two boxes).
Try running temporarily with the third box "Enable Third Party Browser Extensions" unchecked and see how this goes.
"This specifies that you want to disable features you installed for use with Internet Explorer that may have been created by companies other than Microsoft.
If you encounter problems with Internet Explorer that you cannot resolve, you can use this option to help determine if third-party features are causing the problems without uninstalling the feature. You must restart Internet Explorer after turning this option on or off."
If this is a very recent happening perhaps using System Restore might fix it.
Internet Explorer Fix
Have you run the System File checking program by typing Sfc /Scannow in the Run Box?
Requires your XP CD.
And while your CD is in the drive you can try this.
The ability to Repair Internet Explorer does not exist in the version that ships with Windows XP. This feature only becomes available after you upgrade to a newer version. This is normal and has been this way since Windows 98 and IE4. However, you can reinstall IE in Windows XP by clicking Start, Run and entering the following command:
rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\windows\inf\ie.inf
c = windows installation. All IE updates will need replacing after a repair.
How to Reinstall or Repair Internet Explorer and Outlook Express in Windows XP (Q318378)
If they don't work you could try repairing windows by running it over itself. You will lose all your windows updates (no problem if you substitute them with SP2) but your files and programs will be untouched.
How to Perform an In-Place Upgrade (Reinstallation) of Windows XP (Q315341)