sending (imap) email draft with attachment created on computer from iphone

Here's one situation:

I type up an email and attach an excel file to it, then save it as a draft (in my @me.com drafts).

The draft email is now visible in the drafts folder on all of my devices: apple mail on my computer that I originally used, my iphone mail drafts, and also by signing on to www.me.com and opening my mail drafts.

one problem is when you open up an email draft on me.com that was created on a computer mail.app, only to see the message body text lose all of its formatting and appear to be jumbled html.

My main concern / question is:
The email draft with attachment appears to be in tact on me.com and on the original computer, but NOT on the iphone. On the iphone, the attachment seems to disappear. Well, not disappear, because it gets replaced by a small rectangle with a blue question mark in it. Basically you cannot view the attachment on the iphone. When you try to send this draft from the iphone, it works, but with jumbled text & no attachment.

Does anyone have similar problems???