Floor Vanished!:(

[ret0102]

Problem solved and heart attack avoided...I accidently hit the "Q" key which hides the floor.

[ret0102]

You've probably hidden it. Press 'H' or 'W', it'll probably show up.

that was my first thought to, the only way I can get it to appear is hit my G key and even after doing that my Gizmo and other tools appear as a crosshair and my lights and other stuff I've placed in scene like particle emitters and stuff like that vanish so I can't even work on them then...I've loaded up another one of my maps and it's fine..and I never encountered this problem till I started working on a waterfall..even after removing the waterfall the problem still persists.

[ambershee]

You've probably hidden it. Press 'H' or 'W', it'll probably show up.

[ret0102]

I've been working on a level for a few days now and just out of no where my floor is now invisible while working in the level, however if I go into test game mode it's fine..if anyone has an clue to what I've messed up please help me out if you don't mind.