My slopes need professional help

OK! I downloaded the sample slope wad from the zdoom web site, but when I open it with deepsea it gives me a message that says “HEXEN format level and you are editing DOOM levels. Do you want to switch projects?” What the hell is going on here and what do I need to do to get this slope thing to work?

are you using the zdoomhexen project? you should if you want to use the newer features.

http://www.doomworld.com/vb/showthread.php?s=&threadid=7868 - another thread about this.

OK! Now I got my slopes to work, Strange.