I just upgraded to Ubuntu 12.04 LTS from 11.04 on my Dell Optiflex 320 Tower. When I boot up the computer everything seems to work except that the Dash home function is completely non operational. If I reboot there is a list that allows me to select a previous version of Ubuntu 12.04. This seems to rememdy the DASH problem. Is there away to set up the computer so It automatically boots with this OS so I don't have to select it or reboot? Any help would be greatly appreciated.