CSS <ul> drop down menu - IE

Two problems, one in IE.

  1. IE problem - The top drop-down navigation in IE only does not function and does not set up horizontal. I have seen hacks for this but couldn’t follow so I need help. The code for the drop-down menu is in the <head>.

  2. Universal all browser problem - the drop-down menu border does not adjust well to the content inside. Hover the ‘Services’ nav and you will see what I mean. Again, code for this is in the <head>.

I appreciate your help.