are using old and outdated Internet Browsers.
It is always a good idea to keep your brwoser up to date so that pages are displayed as the author intended!
It's also a good idea to ensure that your resolution on your monitor is set to a minimum of 800 x 600 (1024 x 768 is probably more preferable!) and ensure where possible you are using the greatest number of colours.
If you are not sure how to do this, right click on your desktop and select properties then settings.
I have friends and colleagues that check my site under different operating systems and different browsers but, it would be impossible for me to test all the browsers!!
If you check your settings and they are wrong, please change them and you will probably find that many of the sites you visit look a million times better!