CSS menu doesn't work in IE

My website is ip73.net.? The css menu is off the page in IE? (more or less depending on version, monitor and settings).? Especially when you select CISN 165. I want it to look the same in all the browsers.? I'm a teacher.? I cannot pay too much. All the code is there in the web pages.? I have? one small external css file, menuh.css.? ## Deliverables I think you just need the source for the page mentioned above, [login to view URL], the css file, [login to view URL] that I included and a couple of images that I can send or you can copy off the page. I want you to highlight the changes you make so I can see what I did wrong or what was missing.? I should be able to recreate the fix myself and see the same results. I don't want a new page that comes from an authoring program like dreamweaver.? I just want plain text files. Thank you for reading.