this should be learned rather quickly by players, imo. not the system tray "trick," but the "only look at PT when your session is done...or less often than that."
i look about every 1k hands...end of day, for me. and, thats too often. but, i look at my biggest winners and losers, and any other hand i've earmarked. i may glance at the winrate/stats, but i realize that after ONE FRIGGIN DAY, they dont mean squat!!!