well, i think many people have this problem... but i was making a map. tested it, it worked fine except i forgot to add spawn points.

so i went back and did that, and in the meantime fixed a few things up on 2 seperate, HUGE prefabs i made.

tried to load the map again and this shows up:
http://img146.imageshack.us/my.php?image=omgfk7.jpg

so i went back and removed both prefabs to see if it was something i changed, and tried it again and still nothing.

the only other things i did were weld 2 patches of sand together, and move 2 water brushes that were overlapping so they'd meet rather than overlap.

help please

Turn pure to "no" then load the map again. Then if that does not work compile your map again and post the compile log.