I remember some weeks ago I was a similar problem. You can try to do this:<br><br>sudo apt-get install kubuntu-desktop<br><br>or<br><br>sudo dpkg-reconfigure kubuntu-desktop<br><br>It worked for me.<br><br>Good luck<br>Ricardo Díaz<br>
<br><div class="gmail_quote">2010/9/24 Brian Keen <span dir="ltr"><<a href="mailto:brian_mk@hotmail.co.uk">brian_mk@hotmail.co.uk</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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We have a PC running 64bit Ubuntu 10.04 and KDE 4.<br>After discovering that <a style="text-decoration: underline ! important;" href="#12b42a7f51a70ac7_"><font style="font-family: Verdana,Arial,Helvetica,sans-serif; color: blue ! important; font-size: 10pt; font-weight: 400;" color="blue"><span style="font-family: Verdana,Arial,Helvetica,sans-serif; color: blue ! important; font-size: 10pt; font-weight: 400;">VNC</span></font></a> does not work well with KDE 4, we installed the FreeNX server. This works with a NoMachine NX client running on Windows XP with no problems.<br>
<br>We needed another linux PC with the same configuration. To save time we cloned the linux hard disk and installed it in another PC with identical hardware. The IP address & hostname were changed because it had to connect to the same network.<br>
This works fine from the console.<br><br>When I try to connect to the second machine using NX, it appears to authenticate and connect but I get a black window and cursor. After a few seconds, the NX client terminates and the window is closed. It suggests that the KDE <a style="text-decoration: underline ! important;" href="#12b42a7f51a70ac7_"><font style="font-family: Verdana,Arial,Helvetica,sans-serif; color: blue ! important; font-size: 10pt; font-weight: 400;" color="blue"><span style="font-family: Verdana,Arial,Helvetica,sans-serif; color: blue ! important; font-size: 10pt; font-weight: 400;">window </span><span style="font-family: Verdana,Arial,Helvetica,sans-serif; color: blue ! important; font-size: 10pt; font-weight: 400;">manager</span></font></a> is not working properly. However KDE runs up correctly from the console or when using VNC.<br>
<br>I can connect over SSH from another linux machine.<br>I tried removing and re-installing the FreeNX server - same problem.<br>I even tried re-installing the windows NX client.<br><br>
After the attempt to connect, the ~username/.nx directory is empty apart from an empty cache-kde directory. i.e there are no files beginning with 'C-' as there are on the first machine where NX connects ok.<br>
<br>I wonder if there is a file that was created on the first machine that needs deleting and re-creating.<br>
How do I get some log information from the server? /var/log/nxserver.log is empty.<br><br>
I have seen similar issues reported by others in this mailing list, but no solutions.<br>
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<br>Any suggestions?<br><br>Brian.<br> </div>
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