We have 6.3(4) on PIX506E, and PIX515E, 7.1(2) on PIX525. They are rock solid and very happy with those.But after we upgraded PIX515E with 6.3(4) to 7.2(2), all ACLs stopped working.After downgraded from 7.2(2) to 7.1(2), eventhing went well.Andy ide...