Hanziness

Hi, I'm new here. I have some problems. One day, I want to create a new track, I start the Map Editor. And starts load, but at the front, it's freezes. I tryed a full reinstall (with maps, and everything), and nothing. What can I do? So, the reinstall doesn't working, I deleted the MTA files from the SA, but this doesn't work (I reinstalled it after removing but nothing) Please help me!