AutoCAD Civil 3D

[#1]

Hi-

This is a weird problem that two people in my office are having.  Nobody else.  The problem is occuring in multiple files.

When they draw a window (from left to right), an image that has the frame off and is not even touching the selection window is selected.  When I open a file where it is happening for them, it works fine for me on my computer.  Any ideas on why this is happening and/or how I can prevent it from happening?

Windows 7 64 bit

Civil 3D 2013

Thanks so much in advance!

Meredith

[#2]

Check the System Variable "FRAMESELECTION" on the 2 machines that have the issue and set it to 0

(Hidden frames cannot be selected.). Help for here.