I don't have visio here. However, you might want to try copying the object in
Visio, then go to PowerPoint and click Edit > Paste Special. Instead of using
"Microsoft Visio Drawing Object", use something like Picture (windows
metafile) and see if it works.
Also, Method 4 here shows you how to save Visio drawing as an image (which
you can insert into ppt):
http://support.microsoft.com/kb/296826
--
Shawn Toh (tohlz)
Microsoft MVP PowerPoint
(Amazing PowerPoint animations, artworks, games here)
http://pptheaven.mvps.org
PowerPoint Heaven - The Power to Animate