Vhosts not working after update to Ubuntu 10.04

[daffy-]

Hello,

I just finished updating my VPS to Ubuntu 10.04 (from 8.04) and everything seems to work fine, except for vhosts. Even if I try adding new domains, new aliases or subdomains it still points to the default index.html of apache. I even tried setting up an ISPC-server here at home just to compare the config-files, but I can't see what might be missing. I'm all out of clues, so I thought giving the forums here a try, they've helped me quite some times before. So... What config-files do you guys need to see to make some suggestions?

Thanks in advance!