Doesn't seem like an issue with the patch, because I've used 1.3 for a while and now I'm using 1.4, and dragons have behaved the same since release.I didn't use 1.2 though, maybe that's the one you're referring to?
Im on xbox 360, and PC but hate playing with a keyboard and mouse so xbox is my primary gaming station. Im also on the 1.3 "patch". 1.2 worked perfectly, but I havnt been able to kill a single dragon with the 1.3 "patch". Skyrim works perfect on mac, but then again who really wants to play with a mouse and keyboard.
Its ironic how a game that is optimized for xbox runs way worse than Skyrim on my macbook pro running Mac OS X.