Finally on 31/10/2009, I updated my machine to Kubuntu Karmic 9.10!! Was very nervous as not very good or clear cut reviews were available for me to decide if I should upgrade or not but took the Plunge.
This release fixes some old bugs and gives birth to few new ones. I did not have Desktop Effects using OpenGL working in Jaunty(may be previous releases as well), now it works perfectly with absolutely no Desktop Freezeing!!. So I have very fast Desktop with beautiful effects such as Cube based Desktop rollover, Windows Minimize and Maximize, Crumble Window to pieces when I close it and many more effects active and still having a very fast Desktop. Hurray and Thanks to whosoever fixed this annoying issue. I had to rely on XRender previously to have a usable but slightly slow Desktop even though I use Core2Duo Intel machine.