thanks sonin for your reply.
I know that I go into this folder I find the attachment, but the problem is that I don't open it directly from pocket outlook, like before.
btw there is no problem. In the next days I'll hard reset my treo and all will goes well...
and I'm testing the new FlexMail beta and I think that this app will be my favorite client email.
this new release works, finally, well on my treo