ubun2^beta

I'm running ubuntu 9.10 Karmic Koala
I had originally messed something up by accidentally changing permissions on /usr/bin to 777, which disabled me from using sudo.
fixing the permissions by root shell, and now when i try and start up my laptop it gets to the
 
"
Ubuntu
<progress bar thing here>
"
 
and then flashes between that screen and a black screen which says "*nmpd is running" or something.
 

With experiences vary with the ubuntu 9.10 release just curious to know some of the key ubuntu 10.04 features. Any idea?

I recently bought magic jack but they provided software only for windows. Is there a magic jack software available for linux? Or anybody got any luck running the windows version of the magicjack software in ubuntu?

Just downloaded moblin 2.1 image file and thinking of installing it in my ACER aspire one netbook.
 
Since it is .img file i don't know how to burn or flash it into as a bootable USB flash drive so that i can boot my netbook with USB and install moblin. Please help

What is the difference between ubuntu and kubuntu?
 
Which one should i choose over the other for my home desktop use?

Please share your experience of fresh install or upgrade experience from ubuntu 9.04 jaunty or other old ubuntu versions to the latest new 9.10 karmic koala version. We are very eager to know...
 
It will help others waiting to upgrade or install as well as the ubuntu team to improve in the future releases, thanks.

Could you please give me some help for installing nagios on my ubuntu 9.04 jaunty machine?
Thanks!

I was havin issues with my 9.04 installation ....the disc check at boot
up was freezing at 40% so i ran a manual fsck as root and answered yes
to all prompts.
thereafter i had to hard-reboot as the update manager froze.
after reboot it passed the first partition disc check but stuck at 40%
while checking the second partition.so i rebooted and skipped check to
login
But to my horror some icon on the desktop are missing or the graphics have changed(colour)
that goes for the networks icon ,thrash and "show desktop" icon also

I liked the default theme that ships with ubuntu. But i'm more interested in knowing what other best themes others use most of the time and have enjoyed it?
Recently tried mac4lin i.e mac for linux theme and looks great.
Any good gaming kind of theme?