I redid the color combination (made the text and links darker, as well as the background less colorful) and I think it looks better. I chose the background because it was complementary to the green theme, but apparently that clashed a little bit too much.
Thanks for everyone’s help. If there is anything else you find, please let me know.
P.S. I HATE Internet Explorer. I had the CSS perfect and everything looked fine in Firefox. Then did a test-run in IE and spent the next 6 hours making everything look the same in both.