Gothiccheater

I have Vista

Doesen't work, I tried every Codec and changed the settings, but the video is still black...

Hey guys, I have a big problem.I created an animation and rendered it with the Lagarith Lossless codec, but in the Video everything is just black.I thought "ok, try to run it as Admin!" but it doesen't work.I changed it to Windows XP compatibility and runned it as admin but the video is still black I added lights so it can't be my fault. Has anyone the same problem and knows how to fix it?Or is it a bug?