Looks like our scheduler is having a hard time since we went public and sometimes failes to make the first contact on time. This _might_ be a reason for this problem, you may keep trying.
It would probably help to see the actual list of messages the client writes out - can you post them here? It should at least give a reason why it resets or detaches from the project.
BM

How do we attach to projects?
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Try to paste the same url into a browser on the same computer. Are you using a proxy? The you will have to tell the BOINC client of it, too.
BM
BM