I made the mistake of installing a theme i found on the web (seemed nice on the photos) called "xion". The thing is, after i noticed somehting was wrong, i tried to uninstall with the proper uninstallation tool which did not work. The result was to revert back to the original vista aero theme and visual, however some buttons in windows explorer are stuck to the xion thing and also the logon screen as well. (some x's here and there too).

I tried window blinds to see if i could restore the original vista theme and lose the xion leftovers but nothing helps. Can someone point me to the right direction? (Other than re-installing vista).