I guess this answers the question of how the new deck is working.
For me, sometimes it does take a little bit of time to connect with a deck. Sometimes it's almost instantaneous. Rarely do I feel like I just have no connection at all with a deck, though it has happened twice. The first time was quite a few years ago ... I had gotten the Unicorn Tarot, just didn't connect & traded it to a friend who was having the same issue with her Dragon Tarot. The second time was with the Aquarian Tarot which was given to me by a very good friend when I gave him a set of Medicine Cars - I just didn't connect with it and recently gave it to someone on here.
Of course, your question is how did I know? Well, for the most part, I just wasn't really attracted to the art work in them. With the Unicorn, I just didn't feel that the images really worked with me for imparting any real meaning for me. The Aquarian, I could see the meanings, but I just wasn't attracted to art.
I agree with Emmsma that spending a bit of time with a new deck, even one you've had before, is a good idea and is likely to help you connect, or in this case, "reconnect" with the deck. This is also something I'll do with a deck I haven't used in a long time. Just going through the deck, enjoying the art connecting with the images, it may help. It helps me.
You might also try a "new deck reading". It's a 3-card reading I've been doing with my new decks for quite a while now. It's a 3-card spread, laid down vertically;
#1 - What will you teach me?
#2 - What do you need from me?
#3 - What will our "relationship" be like?
Here's the new deck reading I did on the Unicorn Tarot;
http://www.tarotforum.net/showthread.php?t=10596 - I ended up interpreting the reading as the deck not being a good one for me, and ultimately ended up trading it for one I did like better, so it worked out good.
In the case of your Gilded Tarot, since you had connected really well with a different copy of the same deck before, I'd think it might be worth giving it some time. It's a beautiful deck and very good for readings in my opinion (for whatever that's worth
). I like mine anyway.