New Setup of my PC on the Office

Today im using my new setup of Operating system of course a dual boot (Windows Xp and Kubuntu) so far it is running good.. On Windows i am running Free and open source software like the Mozilla Firefox web browser and Open Office. I also install the Mozilla Thunderbird.. I tweak my xp on the regedit. START>RUN>REGEDIT>HKEY_CURRENT_USER>CONTROL PANEL > DESKTOP> MenuShowDelay = 0