Tony

Hey, I had the same issue as you. Originally I thought it must be startallback that's causing the problem. Like you, I uninstalled it, but the problem is still there. Then I realized if it's still causing the problem, it must be some other programs. So I started uninstalling recent installed programs one by one and in the end I found my problem. It was 4t tray minimizer program, that helps minimize applications into tray icon. In your case, it could be some other program you installed recently that's interfering with it. You need to start uninstall or exiting other programs one by one until you find the problem.