[philonous]

Upgrading to OG 4 is well worth the price because the inspectors are considerably improved.

You need to turn off either one of two things (or both). Either turn off the "snap to grid" option for objects, or "allow connections to other objects". I'm on OG 4, so I don't know where these options are in 3. I have a feeling that it is the former that you want to disable.

Payam