Frozen Cameras

Note to Self:
When working in Autodesk VIZ 2005 (great 3d program for rendering architectural models), don't put cameras on a frozen layer!
Some days I am quicker to realize my mistakes... Yesterday was not one of those days.
I wasn't watching which layer I was on (my first mistake), which incidentally happened to be frozen.
I was attempting to add a camera to the scene and for some reason... It disappeared as soon as I placed it.
Weird.
And by sheer instinct, instead of looking for a reason... I quickly clicked all over the nearby vicinity and added 14 or so more cameras... All of which were disappearing as I inserted them (actually they never appeared at all).
They didn't show up in the list of pickable/editable items, yet I could switch the active view to them!
It was downright crazy... I had never seen anything like it.
Beau Turner - alias 'VIZ gooroo' .... Listened patiently to my dilemma and then casually looks over my shoulder and says, "perhaps they're on a frozen layer".
I dismissed this immediately.. No one in their right mine would try to place items into the project without first checking their active layer...
... Dang.
He was right.
:)