SQL will tell you if/why it won't shrink the log:
SELECT log_reuse_wait_desc, * --col name may be a little off, from memory, but it's at least close
FROM sys.databases
WHERE name = 'yourDbName'
SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".