MS client issues

Hey, Weird question: I am running freeradius 1.1.5, with samba 3.0.24. configured using EAP-PEAP, works, when I use a windows XP client and DO NOT do "automatically connect with my domain login name and password", it works like a charm. However when i DO configure it to "auto login" it fails miserably...the domain comes across fine, and ntlm_auth seems okay, it just fails to provide to correct --nt-response. if anyone has a hint please let me know. here is my debug output for the failure. Exec-Program output: Logon failure (0xc000006d) Exec-Program-Wait: plaintext: Logon failure (0xc000006d) Exec-Program: returned: 1 rlm_mschap: External script failed. rlm_mschap: FAILED: MS-CHAP2-Response is incorrect Joe