pink cast on PowerPoint presentation

Hi - I've got a weird one - hopefully someone has experience
with Power Point and can help us figure this out.

Trying to insert small logo which is red and gray with a lot of
white space in the lower right corner. The logo is like a reversed
7 . Red going down and gray across the top.

Whenever it is inserted into a Power Point presentation there is
a pink cast to the large white area. Looks really bad on a white background.
No matter the format of the logo -  jpg, gif, png - the pink prevails.

When we change the red to another color there is no pink cast.
Any clues?? Maybe just some funky MS thing?

 - l i s a 

HWG: hwg-graphics mailing list archives, maintained by Webmasters @ IWA