Fixed (I think). I created a new solution, and manually re-added evrything to this. This now works when I add content, thankfully.Thanks guys.
On a side note, what benefits does 2008 have over 2005, from a code point of view? The only thing Ive changed is I now use Lambda expressions. Do these work in 2005? I only ask because I would like to test xbox support, and dont want to wait for the release.
Edit: Not fixed. I have tried to add custom porcessors, and have added the project to my solution, thyen placed a referance in the content folder. They are not given as options. I ntoiced that one of my porjects when readded gave me a message saying the file had been modifeid, asking if it should be browsed normally or not. I didnt really get what this meant. Is this likely to be the problem?