FLA source control?

We’ve updated to Flash Professional CS5.5, but are noticing that when multiple users access the FLA over AFP network file share off our OSX Server, they are not restricted from opening the FLA at the same time.

Could have sworn that’s always just worked in past versions. Most apps just refuse users access to open files; Other apps like Office warn us of multiple user access to open read-only.

  1. are others having same issue when two people access same fileshared FLA over a network?

  2. what source checkin/checkout options are people are using to manage multiple user collaboration on FLA production work?

Thanks!