Dual Booting Leopard and Windows

Hi, I am experiencing problems on Mac computers that are dual booting with Windows. There was initially a time conflict with Leopard 10.5.8 not syncing the time after a reboot from Windows (fix was a registry setting in Windows to make it store time as UTC). Now logging in to a Leopard computer bound to AD works, but on a dual boot computer it does not work. What does seem to work is this: - unbind then rebind computer - works upon multiple restarts, until a user boots into Windows then back to Mac - some computers seem to work booting from Windows to Mac, etc. - doesn't appear ot be any consistency (I am probably missing something though!) - I thought it was all related to the time being wrong on Leopard compared to the Domain Controller - sort of worked but no cigar! Anybody in a similar situation with it working?