Attachments present in message raw source, but not regular message window

Question

Here's a weird one. People email me attachments (usually a PDF or Word doc). But the attachments are not present in the normal message window. However, if I look at the raw source, the attachment is there. Leopard 10.5.2, Mail 3.2 (919/919.2), IMAP. Why is this happening?
(excerpted from raw source)
--Boundary(IDpEcYLZVYOTel3CWtYAR9LA)
Content-type: multipart/appledouble;
boundary="Boundary(IDrJZupRSdPXWYMgV1VajHYw)"
Content-disposition: attachment
--Boundary(IDrJZupRSdPXWYMgV1VajHYw)
Content-type: application/applefile; name=100HrChallengeRules31108.doc
Content-transfer-encoding: base64
Content-disposition: attachment; filename=100HrChallengeRules31108.doc
AAUWBwACAAAAAAAAAAAAAAAAAAAAAAAAAAMAAAAJAAAAPgAAAAoAAAADAAAASAAAAB4AAAACAAAA
ZgAAAR5XOEJOTVNXRAAAMTAwSHJDaGFsbGVuZ2VSdWxlczNfMTFfMDguZG9jAAABAAAAAQAAAAAA
AAAAHgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAQAAAAEAAAAAAAAAAB4UI21cAiUAAAAcAB7//w==
--Boundary(IDrJZupRSdPXWYMgV1VajHYw)
Content-type: application/octet-stream; x-mac-type=5738424E; x-unix-mode=0644;
x-mac-creator=4D535744; name=100HrChallengeRules31108.doc
Content-transfer-encoding: base64
Content-disposition: attachment; filename=100HrChallengeRules31108.doc
0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAABAAAAaAAAAAAAAAAA
EAAAagAAAAEAAAD+////AAAAAGcAAAD
[etc.]

Answer 1

I too have this issue, I don't have this issue in IE. I am using firefox 5.0