Anyone having trouble with rubygems-update? I'm trying to update to 0.8.4 to
try and fix some problems I seem to be having with 0.8.3.

[C:\ruby\lib\ruby\gems\1.8\gems]gem --version
0.8.3

[C:\ruby\lib\ruby\gems\1.8\gems]gem install rubygems-update
Attempting local installation of 'rubygems-update'
Local gem file not found: rubygems-update*.gem
Attempting remote installation of 'rubygems-update'
ERROR:  While executing gem ... (Zlib::BufError)
    buffer error