Yesterday I went into msconfig startup and disabled Quick Time and Apple Push. When I rebooted, the taskbar color had changed from light blue to purple and when I click on the systray, there is now a thick border around the icon menu. When I also noticed other appearance changes, e.g. the startup menu had the light blue border, now it has a light green (see attachments). What could have cause the change? Is there a way to get back to the former appearance without enabling what I disabled?