Well, I will not profess to be an expert but am not completely green. Most my my experience has come from running FreeBSD since 5.0 was first released. I have run a few linux boxes over the years but mostly FreeBSD. My workstations have almost always been windows for my main ones and a few Linux / Macs as secondary in my line of priority. I started switching my servers to CentOS about a year and a half ago and really started pushing to Ubuntu Server about six months ago. Anyway, I finally switched my main desktop to Ubuntu 64bit Desktop. I would have to say after a week of running it that I do not think that Ubuntu is fully up to speed to be a desktop OS. Atleast not past a standard desktop computer. My biggest complaint is that in order to drag a window across my four LCDs I have to enable Xinerama. Xinerama is not compatible with compiz so there goes any visual effects including the proper display of Docky. I posted on here asking if anyone had any work arounds and I never got a response so I would have to assume that this problem is just accepted with no resolution. Other quirkiness appears from time to time. I may have the audio unmuted and it will display so in 2 or three monitors and the others will show in the panel that the sound is muted. I can have a Screenlets daemon icon on one monitor but none of the others so it requires going through the menu to add a widget to a desktop. To top it off about 20 minutes ago I tried highlighting something that I had typed on google and the mouse started spastically fluttering around three of the four screens like little gnats. The digital clock stopped and froze. I knew at that point that X had left the building. The lights were on but nobody was home. My thoughts are that Ubuntu is probably the closest and being mainstream desktop ready but they just aren't quite there yet. Anyone with constructive thoughts?