This problem is being noticed in my windows 7 system from past one week. I have completely no idea why exactly I am facing this problem as I havenít done anything with the computer. Yesterday when I was trying to create and edit a theme everything went on smoothly till I saved and turned off the PC. As far as I know the screen saver was created well and also I managed to save it successfully but then when I restarted the PC I found that some other unsaved theme stayed as the default theme in my machine. I never saved this theme then how come I got saved in the computer and made itself as the default theme. Guys please help me out. What exactly should I do now? Deleting that unsaved theme doesnít really helps. Is there any alternate solution that I could help me in resolving the issue?