.rtf file transfer FAILS.

Hi. I had 2.5 build 1005 and upgraded to build 1006 to see if latest version would resolve this problem but it didn't. I was trying to transfer a document.rtf file I created with wordpad to my host and it failed repeatedly. Log says something like, "use a quee for automatic transfers" or something like it... Don't know what that is but the deal is that the transfer fails. I renamed the file to document.doc and now it went thru fine. Just hope my client has Microsoft Word installed. Just wanted to let you know.