Step 3 Stuck! iTunes crashing

Hi there!

I'm having a big problem with iTunes Match.

After upgrading for iTunes 11 and doning the first and second steps with iTunes Match, there were no problems. But in the thir, closing the aplication, when it supose to download and upload the musics to iTunes. I can't upload almost 1000 musics with this problem!!!

Anyone withe the same problem?

Thank you!