My zen goes black when I try to syncronize, why?

Songbird is a great program for me, because it can syncronize with every mp3-player. Or, at least I thought so. So, here's my problem:
I made a playlist with the songs I wanted on my mp3-player, which is a Creative Zen 8GB. I put my empty Zen in my computer (Windows XP Service Pack 3). It worked fine, except Songbird (the newest version by the way) didn't sync all the songs, about 100 songs of the total 1700 were missing. Hmm, what about trying again, I thought, and de- and attached my Zen again. It registrated the player, but after 5 seconds the player's screen went black, and then nothing happened. And now that happens every time I attach my Zen to my computer and have Songbird open. I even tried to set the player's setting to manual in songbird, attached the player, set the player's settings to automatic syncronizing, and after 5 seconds, it went black. What do I do?
I'm very frustrated because of this, because this was probably the main reason, why I would start using Songbird. Please help!