PEAP and NT domain logon problem

Hi, I have a freebsd box with a working freeradius 1.0.4 on it. PEAP works fine but I have to be logged before... Here is my problem, when I try to log on my domain, Windows complains about the fact that it is "unable to find my profile on the server" (or sometimes that "the domain XXXXX is unreachable"). Is there any solution to tell windows XP supplicant to wait for auth before trying to download profile ? I think this will be solve by switching to EAP/TLS or EAP/TTLS... but I'm not sure. Regards, Jeremy