[Sage-4.7]SageNB returns no result
As a new sage user, I recently compiled Sage-4.7 from source and it runs smoothly in the command line. However, when I set up the sage notebook, the expression returns no result in browser For instance, if you enter 1+1, then click "Evaluate", the cell turns green but then it keeps running and never returns anything. The terminal displays the following:
sage: notebook(interface='', server_pool=['sage1@localhost'],
....: ulimit='-v 500000', secure=True, directory="/tmp/work", accounts=True)
The notebook files are stored in: work.sagenb
****************************************************
* *
* Open your web browser to https://localhost:8000 *
* *
****************************************************
There is an admin account. If you do not remember the password,
quit the notebook and type notebook(reset=True).
/tmp/work/sage-4.7/local/bin/sage-native-execute: line 8: firefox: command not
found
2011-06-20 13:50:09-0400 [-] Log opened.
2011-06-20 13:50:09-0400 [-] twistd 9.0.0 (/tmp/work/sage-4.7/local/bin/python
2.6.4) starting up.
2011-06-20 13:50:09-0400 [-] reactor class: twisted.internet.selectreactor.Sel
ectReactor.
2011-06-20 13:50:09-0400 [-] twisted.web2.channel.http.HTTPFactory starting on
8000
2011-06-20 13:50:09-0400 [-] Starting factory <twisted.web2.channel.http.HTTPF
actory instance at 0x19ef35a8>
I tried checking the installation using make check and it is fine. Can someone give me some ideas on how to proceed?
Thanks so much!
Riemann