Ruby on Rails

hello..

i have problem with rubygems version 1.8.7 on ubuntu 10.04 server LTS
64bit.this rubygems i also try both installation automatic using apt-get
package manager and using manually installation but the problem also
same.
the problem occur when i try to install any gems installation
package.i try many solution to solve the problem like remove and install
back rubygems.i also format computer then install back ruby and rubygems
but still cannot solve this problem.so i hope any rubygem expert can
help me solved this kind of problem.below are the following error that
appear after i execute gem install command.

sudo gem install any-package

ERROR: While executing gem ... (Zlib::DataError)
incorrect header check.

and my environment for gems

oneadmin@server:~$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.10
- RUBY VERSION: 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
- INSTALLATION DIRECTORY: /usr/lib/ruby/gems/1.8
- RUBY EXECUTABLE: /usr/bin/ruby1.8
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /usr/lib/ruby/gems/1.8
- /srv/cloud/one/.gem/ruby/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/

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