This is really small bug but let the CIS be flawless.
There is 1px bug in skin (upper left corner) - see image attached. My first impression was that my tft had developed dead pixel - but since it moved with CIS window it is not RIP yet.
Here are some general info for bug reporting:
CIS ver. 3.5.57173.439
sn: D040FBFE98F2444eA2D35D194B82684E
on Windows XP Home SP3