>how do i fix this if it supposed to work on vista

First of all, you'll need to find somebody who had a similar problem. I use it with World of Warcraft, and it "just works". Nothing to fix.

Sounds DAoC-specific, so it's probably a feature of the app. With a bit of luck, you'll find somebody here who's multi-boxing DAoC and can provide the solution but I wouldn't hold my breath.

There are a number of compatibility options you can set when you fire up an application in Vista (no, I don't have any details whatsoever to hand) - you might want to have a play with those, but that's just a shot in the dark.