My drop down screens won't let me drop down!?

Recently at work I got a new computer with Windows XP. I do a lot of ordering for our company and one screen I have to use online has 2-3 boxes where you click on the arrow and make your selection of how you want it shipped, etc. Well, since the new computer, it won't work. I can click the little arrow as much as I want and nothing happens. If I log in on someone else's computer with my same account, everything is fine so I know it's something set up on this particular computer. Also, I keep my personal photos on Kodak picture gallery. On this same computer, it will allow me to see the album, but when I click to pull up a picture to edit or crop, etc., I can't see the picture. I still see the caption so I know it has loaded, but no picture. Again, works fine at my home computer. Is it something with the cookies setting or what??!! How do I fix it?