Hi! I've been a fan of CCleaner for quite some time.
I thought I'd help out by reporting a bug (and, once I finally get a credit card, by donating).
On the free version of CCleaner, (1) go to the Cookies list. (2) Look at the left column. (3) Click the slider in the middle of the scrollbar. (4) If there are enough entries that the scrollbar is *not* grayed-out, click the last entry in the list; else, you can't replicate this bug. (5) The list should have turned black with white highlighting around the lettering. (6) Click on any other option to see it alone go back to normal. (7)