I don't know if it is just my video card, but I've tried it on nVidia and ATI ones with the same result. I run dual 19" monitors and usually have notes client on left, and designer on the right. For some reason, I cannot drag the properties box to ...
Not all have sametime enabled. Using the screen capture tool is often done within the Notes client.
I suggest to move the tool from Sametime plugin to the Notes client. (or whatever you would call it)
Currently you must be logged into Sametime in order to use the screen capture tool. It should be available at all times.