You can do this, however, this feature is a bit hidden.
Right-click in the scene area (the top where the background colour is, their display name,
etc.) and choose 'Use the default scene'.
Unfortunately this is per contact, so you'll need to do it for everyone.
Microsoft MVP - Windows Live Messenger
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"Jeff Johnson" <i.get@xxxxxx> wrote in message
> I don't know if this is an extremely new feature or if everyone I chat with has the same
> background color, but today for the first time a chat window opened when a friend messaged
> me and it did not use the same color as my default background, but rather the SENDER's
> DO NOT WANT!!!
> I looked through Tools | Options and don't see anything that suggests "Always use my
> personal background color for chat windows." Can this be done? Can I tell Messenger to
> NEVER use the sender's background colors, only my own?