hey campbell,

unfortunately i cannot test this because i have non-be 920, and with that chip 2ghz ht would be higher then 1.8ghz nb so thats not possible. perhaps i'll get a be 940 in the next days (depends what stepping they have here) and i can test then...

did you try upping the nb to 2.2ghz to get it out of reach of the ht freq? perhaps that solves the problem?