Hi Guillem, Do you use Firefox as a localapp? Even though this doesn't solve this issue, it should take care of the problem. David <div class="gmail_quote">On Wed, Jan 12, 2011 at 5:12 PM, Guillem Moyà <<a href="mailto:guillem.moia@gmail.com">guillem.moia@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear friends, This new year we decide to upgrade our server (intel core duo 2 gb ram 32 bit with 20 thin clients 32 bit ) with a new dell xeon quad (duo 8 gb ram 64 bit... --> <pre><a href="http://cdimage.ubuntu.com/edubuntu/releases/10.10/release/edubuntu-10.10-dvd-amd64.iso" target="_blank">edubuntu-10.10-dvd-amd64.iso</a> ( once I installed i386 version, but it only detects 2 gb RAM!!)</pre> <div class="gmail_quote">the problem was when 9 users wanted to access a website with applet de java: <a href="http://micro.magnet.fsu.edu/electromag/java/capacitor/index.html" target="_blank">http://micro.magnet.fsu.edu/electromag/java/capacitor/index.html</a> As you can see with the pictures attached, how is this possible to collapse de CPU --->100% With edubutu 8.04 the whole system (1 poor server 32 bit+20 thin clients 32 bit) worked much better... How can we optimize the whole performance? thanks in advance, Guillem </div><a href="http://www.aulabalear.org" target="_blank">www.aulabalear.org</a> Illes Balears. Spain -- ubuntu-education mailing list <a href="mailto:ubuntu-education@lists.ubuntu.com">ubuntu-education@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-education" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-education</a> </blockquote></div>