[imp] CVS no compose window

[Rick Emery]

Quoting Michael M Slusarz <slusarz at bigworm.colorado.edu>:

> Try the latest fixes to CVS.  I used ob_get_length() instead of headers_sent
> () - this fixes the problems with compressed output.  This _should_ also
> work with uncompressed output (it worked in my limited tests when I turned
> off compression on my system).
> 
> michael

Seems to have fixed me, too. Thanks!