Thunderbird 5, like Firefox 4 takes advantage of Windows Aero Glass effect on Vista and Windows 7. This results in a transparent menu bar, which some users find this transparency annoying. There are a couple ways to get around this. You can use a Persona or add these lines to your Thunderbird’s userChrome.css file:
/*Removes Transparent Aero Theme Effect Windows Vista & 7 */
window, page, dialog, wizard, prefwindow {
background-color: -moz-Dialog !important; }
#toolbar-menubar {
-moz-appearance: -moz-win-browsertabbar-toolbox !important;
} "
Or you can simply run Thunderbird in compatibility mode with Windows XP.
Hmm…never thought about that.
If I run in compatibility mode, I get a UAC warning every time I open the program. Guess I’d rather use the .css tweak.
Well that would be rather annoying real quick. It would seem in the long run using the .css tweak would be better and simpler.