PTR? How? And Question.

[Lywellyn]

Exactly how does using the PTR work? I went to download the client, and I wasn't exactly sure I liked the way the file name was...would turn my 2.0.12 client to a 0.1.0 client? Eh?

One question: Any other MMO I've played that has some kind of test server, I was able to separate test server files from live server files, so that I could play one or the other, and not have to repatch back and forth all the time. Is it possible to do this here?