This seems to be related to the previous post.
Check Help>>About Multisim, and see what build version you are running, if it is 10.0.144 or 10.0.175 you need to patch your software. There is a 1 MB download for NI Circuit Design Suite 10.0.0.1.
However, if you want to bring your software to the latest update, download NI Circuit Design Suite 10.0.1 Educational, but this one is a 270 MB download since it is a full installer.
This should fix the breadboard.
Nestor