[imp] 4.0-ALPHA not reading headers and attachments

[Sean D.]

I just setup the new alphas, Horde, IMP, Turba, etc...
Everything works except a problem i'm having with IMP. (well ok.. not 
everything passwd looks like some paths will need to be adjusted before 
its compatible with the new Horde but thats outside the scope of this 
email.)

first off you should know:
-PHP ver. is 4.3.4 w/ mcrypt, mime-magic, mbstring, etc. compiled in
-IMAP is Courier 1.7.3
-Apache 2.0.40
-OS is Redhat 9
-The actual headers and content of all the emails seem ok. they display 
fine in my email client (thunderbird) and in my  regular IMP install. 
(latest stable)
-Comparing message source in the stable imp, the alpha ver., and my 
email client program shows exactly the same text.
-My install of the latest stable ver. of IMP works just fine.

heres the problem:
When I view a plain text email I see the complete headers displayed as 
the message body (but with no carriage returns) and i dont see any of 
the actual message body. Viewing source confirms the entire message is 
there and intact.  When I look at an HTML email or even a plain text 
email with an attachment I get:

     Part(s): 1 unnamed [?q ?'7??/alternative] 0KB
     There are no parts that can be displayed inline.

and no message body is displayed. I can click the icon to download the 
file which is named "unnamed" and when I open it in a text editor it 
contains a plaintext version of the HTML contents much like i think IMP 
should have displayed as the message body if I had inline HTML turned 
off. If I look at the same file in the stable IMP I see the message just 
fine (i have inline html turned on) and i also can download the html in 
the form of a file named "unnamed" and it displays it properly as:
2 unnamed text/html 3.75KB

More details available by request and if you email me directly I can 
give you the url to the site and an account to test with.  ;-)

Thanks,
Sean