error in process sentinel: Empty string for buffer name is not allowed

[Billy <web@xxxxxxxxxxxx>]

Hello.
I see a bug when accessing the following site using emacs-w3m:
http://duckduckgo.com/lite/ - this works, but:
https://duckduckgo.com/lite/ - prints the following error message:
error in process sentinel: generate-new-buffer: Empty string for
buffer name is not allowed
error in process sentinel: Empty string for buffer name is not allowed

https://duckduckgo.com/lite/?q=test - this works, but clicking 'Next
Page' prints the same error message.

Using Ubuntu 10.10:
emacs-w3m 1.4.394+0.20100524-1 (package w3m-el-snapshot)
emacs 23.1.50.1

Thank you.