Web dynpro abap cannot display web page

Question

Hello
when running Test in se80 on my web dynpro application the browser says it cannot display the web page.
1. the url of the wd application is http://<hostname>.domain.ext:8000/sap/bc/webdynpro/sap/<component name>
2. rz10 says that profile NSP_DVEBMGS00_<hostname> has icm/host_name_full = <hostname>.domain.ext
3. rz11 says that icm/host_name_full = <hostname>.domain.ext
4. smicm says that  icm/host_name_full = <hostname>.domain.ext
5. in etc/hosts on vista 32bit version 6002 I have put:
127.0.0.1       localhost
127.0.0.1       <hostname>.domain.ext
10.10.0.10      <hostname>.domain.ext          
<empty line>          
I also have
SAPGLOBALHOST                              <hostname>
rdisp/mshost                                <hostname>
and no values at all for
SAPLOCALHOST
SAPLOCALHOSTFULL
in the profiles.
The following works:
http://localhost:50013/sapmc/sapmc.html?SID=NSP&NR=00&HOST=<hostname>.
Can anyone help me? I read that many of you have solved this but, you see, I do not understand what you have done.

Answer 1

Setting icm/host_name_full to <hostname>.domain.ext in rz10 in profile NSP_DVEBMGS00_<hostname> means:
1) I can no longer see my web dynpro view layout in se80 - instead of the view layout I get a browser screen that says the page cannot be displayed;
2) I get the same browser screen saying the page cannot be displayed when running the wd application test.
If I remove that parameter in rz10 then:
3) I can see and work with my view layouts in se80;
4) I get a 500 rabax state error when I do the wd application test;
5)  I can do a successful wd application test by changing the url manually in the browser from <hostname>:8000 to localhost:8000 ...  as in
http://wiki.sdn.sap.com/wiki/display/BSP/FullyQualifiedDomainName(FQDN).