This problem occurs at least in the coloc threshold sliders, possibly some other places as well. If the number showing the current value of the slider is a 4-digit number, the number doesn't seem to fit into the space reserved for it and is not fully visible. Win XP beta released 2007-09-24.
Anonymous
Just tested this on OS X, and it's not present. Lassi verified it doesn't exist in Linux either. (Just reporting.)