No, you can't do that through GP. There's really no easy way to do that
without running some kind of process on your DCs (assuming they are AD
accounts you're talking about) that check last logon times.
Darren
--
Darren Mar-Elia
MS-MVP-Windows Server--Group Policy
http://www.gpoguy.com -- The Windows Group Policy Information Hub:
FAQs, Training Videos, Whitepapers and Utilities for all things Group
Policy-related
Group Policy Management solutions at
http://www.sdmsoftware.com