The best solution to your problem probably would be using Microsoft's AD RMS.
Can this solution be used without an Active Directory environment?
There are plenty of organisations out there using other authentication, authorisation and trustee management mechanisms, just wondering what their options might be.
I give the same sentiments as previously but with a Happy Hanukkah thrown in for good measure. This considering that Hanukkah starts on the evening of Christmas day this year.
Installed Mandrake 9.2 and SUSE 9.0 on laptop and there is some documentation here -
http://www.jazzwipe.dyndns.org/projects/vaio/vaioGRV516G.html
And so this is Christmas - It is very likely that it isn't when you read this, inevitable in fact, maybe Christmas does not feature in your calendar, 25 December, we give gifts, we also receive gifts, time off work also for me, I give you season's greetings whatever your culture, this time of the year was formerly a Pagan festival but was nicked from the Pagans to provide a religious festival, I am not religious. The time here is 6.31PM on Christmas eve.
If all else fails, lower your standards.