ipod troubles

Hi, I just got a new ipod and connected it to my computer. Everything installed properly as far as I could tell however I can not add songs to my ipod. Unlike my other ipod the name is greyed out, like it's not even connected to my computer. I use itunes and try to drag songs into my ipod which worked perfectly on my other one. However, it does not add them. It's a 5th generation, 30gb video ipod, running on windows xp. Any ideas, or suggestions would be appreciated.