MAJOR problem building

[dbgtdude]

Recently I tried to create a new lot for my sims game.  When I got to installing the doors and windows, it would not allow me to.  Each time I tried to install a door or winow, I got the message door/window myst be placed on center of tile.  Using cheats and even (gasp!) deleting my download folder (which THIS time I thankfully backed up first!) netted me the same message. 

I would appreciate anyone and everyone's solutions to this mess.

[amc462000]

move objects on messes up placing doors and windows.  uneven terrain on the outside of the wall messes up installing doors. that is all I can think of right now.

[ancienthighway]

so does boolprop snapobjectstogrid off.  SeeThem2 enables it which is probably why you can't place windows and doors.