Characters lost while "stuffing" in GNU Emacs?

[Jeff Sullivan]

I am using GNU Emacs version 18.53.3 under SunOS 4.0.3.  The problem I
have is that I cannot "stuff" more than a certain amount of text into an
Emacs buffer. The limit seems to be 256 characters.

This is very annoying, since I can "select" much more text than I can
"stuff". Does anyone know what causes this limitation and how to work
around it?

 Any help appreciated,
 -Jeff
Jeff Sullivan | Computervision/Prime | jsulliva at cvbnet.prime.com
CADDS R&D     | Bedford, MA    01730 | sun!cvbnet!jsulliva