Toolbar color

For some reason, the toolbars on IE, OE and even Firefox have changed to a
darker color. I went so far as to do a compete restore back to October and
shortly after restoring my mail the taskbars changed to the darker color
again. It sort of tan, not beige. I am completely unable to find any way
to change it back ... pretty much anything BUT the toolbar color. Any help
would be much appreciated.
Thanks!
Bill