I have Rivatuner set up to display the Rivatuner icon, GPU temp and fan duty cycle in the Notification Area on the taskbar (tray), and everything works fine for a couple days. I have Rivatuner set to run via task manager at login. But after a couple days, those icons fail to appear on startup, and the only way I can get them to show up again is to re-install Rivatuner. Rivatuner seems to be running OK, just no icons. Anyone have any ideas why this is happening? I have scanned thoroughly for malware and viruses.