this should work the same as Entourage did. I thought I did it all the time. However, there may be a preference that you need to set to enable Mail to forward attachments. You are undoubtedly doing it correctly. Check the Mail Preferences and see if there is anything about forwarding email.
I have no OS X machine here but can check later for you if you don't find anything
P
Hi,
I've tried over and over to FORWARD a message that I receive (which has attachments) to other people and the attachments are NOT forwarded. Under Entourage I was able to do this by simply hitting FORWARD. Is there a setting in Apple Mail (10.4) for this ? If so, I can't find it.
Thanks,
Ed

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic