I can't play downloaded maps.

For every map I dowload I get the same two problems:

If I try to open it in mapmaker I get the following error message:

Unable to load file "mapname"

- Level Info data missing or invalid

If I try to play them ingame the custom game select screen goes up as if to play the level but immediately comes back down and returns me to the map description page.

I have Frozen Throne version 1.22, and the campaign and custom maps that came with the game work perfectly. Please Help!|||Maps you try to open in the World Editor that fail to open are probably failing because the map has been protected. That's kind of a common result.

As to why maps crash back to the map description page: no idea.