HELP: cannot clone a repository via http_proxy on FC13

Hello,

I cannot use git clone to get data from a repository.

I encountered the problem and searched on line without any solutions. So could you please help me on this?

First, I have setup the http_proxy as an environment variable. And I can use wget to download the repository page.

--- On my FC13
System: Fedora 13
Kernel version: 2.6.33.4-95.fc13.i686.PAE
Git version: 1.7.0.1

I tried this command:
   sudo git clone
http://git.gitorious.org/meego-developer-tools/image-creator.git

got the error messages as follow:
   Initialized empty Git repository in
/home/sylvia/workarea/DEV_TOOLS/test/image-creator/.git/
   error: Failed connect to git.gitorious.org:80; Operation now in
progress while accessing
http://git.gitorious.org/meego-developer-tools/image-creator.git/info/refs

   fatal: HTTP request failed

--- On my FC12 I also tried on Fedora 12, same error exist.

--- On my Kubuntu: it is working well.
System: Kubuntu
Kernel version: 2.6.31-21-generic
Git version: 1.6.3.3

Seems it is something wrong with Fedora. Can you help me on this? Thanks a lot.

BR, Sylvia