Added for improvement as http://www.ventismedia.com/mantis/view.php?id=7895

You can add :
[System]
ForceDisableAero=1
in your ini file.

i would like to see this also.
but actually there kind of is a function like this already. just run MM in compability mode with the winxp option.

Moved to wishlist as this cannot be achieved via addon.

An option to disable the aero theme in media monkey 4 would be really nice. I'd like to have 1 line of buttons and stuff at the top rather than two rows to maximize space available for media information.

Basically I want something like this:
http://www.flickr.com/photos/63328254@N08/5753614369/
Though with better color fading, pardon the hack job, I wasn't in the mood to do it all pretty like.

Not like this:
http://www.flickr.com/photos/63328254@N08/5753614901/