Datacolor User to User Support Group.

It is definately a counterweight.  It really doesn't snap in anywhere, but you merely press the center of the counterweight (at least on my 2 version of it) and drape it over the back of the monitor in the case of an lcd or the top I suppose of a crt.  
 
Make sure you position the calibration unit as squarely as possible over the target Colorvision provides.  
 
I generally calibrate my monitor around 4 in the morning with all ambient lights out.  Makes for a bit of a go trying to find the menu on the lcd to adjust but it seems to work better for me. 
 
My understanding is the Spyder 3 is better at handling ambient light than mine.


--- On Sat, 11/8/08, Jim Miller <jim@...> wrote:

From: Jim Miller <jim@...>
Subject: [colorvision_group] Spyder3 counterweight?
To: colorvision_group@yahoogroups.com
Date: Saturday, November 8, 2008, 2:33 PM






I'm just getting my Spyder3 Studio running. Is the blob on the end of
the Spyder3 a ferrite noise reducer or is it the "counterweight? "

If it's the counterweight do I just slip it along the cable into a
useful position or does it remove and then snap on elsewhere?

tnx
jtm