Disappearing Nvidia taskbar?



I noticed recently since Nvidia driver 175.16 to 175.19 that sometimes when I start my computer from cold start that the Nvidia task bar option goes to a small black box. When you put the arrow to the black box it disappears? Then when I go back to check the Nvidia control panel the option “Show Notification tray icon” is unchecked and have to recheck it? But I know I check it to show. Did anyone using these two driver version notice or see this happen as well? I have XP pro SP3, Zonealarm pro, Avira A/V installed but that nothing like this has happened to previous version of Nvidia drivers.