Might be a computer question

[utakecare2003]

I am using revit arch 2010. My keyboard started being weird after lunch. when I click any elec/mech items, just 1 click (w/ selection tool), instead of being highlighted, they move to another location. This does not happen to walls, not sure about the doors cause they are hosted to walls.
I restarted my computer but did not solve the problem. Anyone knows what is going on?
thanks alot~
utc

[DaveP]

Watch your Options Bar at the top of your drawing window
Does it double or triple?
If that's the case, do a search on AUGI for "Jumpy" and you'll find lots of discussion threads.