evolution crashes with segmentation fault

Binary package hint: evolution

I have a typical situation
I am across my office proxy using ubuntu 11.04.
I have set the static ip and also the network proxy to entire system through network proxy settings.
I use and like evolution as my mail handler and i am using it for almost 5 years now. This problem which i will tell you was not there before ubuntu 11.04.
To update i use to use apt-get command from command window. it was not working after upgrade to ubuntu 11.04. from ubuntu community i found out to add lines given below in my /home/`/.bashrc
export http_proxy=192.168.90.94:8080
export https_proxy=192.168.90.94:8080
export ftp_proxy=192.168.90.94:8080

In evolution I have set network preferences as use system defaults.
Now when io try to use evolution to send and receive mails it does not work it gives error of time out.
Next when i set network proxy system wide to direct connection and then run evolution from user prompt in command window then the evolution starts fetchin mails and sending them. I tried with removing the lines from .bashrc and then using system proxy settings it never worked.
i ried to set proxy in evolution separately it still didn't work. This has become a great unconvinience as if i use direct connection settings in network proxy settings it stops browsers and other applications from using internet across proxy and only evolution fetches mails. and vice a versa. Am i amking any mistake. can this be set right.
Please help.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: evolution 2.32.2-0ubuntu7
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Mon Jun 6 11:53:46 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110419)
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, user)
 LANG=en_IN
 LC_MESSAGES=en_IN.UTF-8
 SHELL=/bin/bash
SourcePackage: evolution
UpgradeStatus: No upgrade log present (probably fresh install)