UPDATE: I figured the problem was due to messed up compiz settings. Disabling and enabling compiz (Right Click on Desktop>Change Desktop Background>Visual Effects None and then again to Normal or Extra) fixed it.
The older post follows.

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A lot of Ubuntu 10.10 users have been complaining about Maverick being too slow, typing becoming laggy and video performance being choppy.   Here are few things you can try to make it fast again. These have been collected from the user experience discussed in this post in Ubuntu forums.

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Mark Shuttleworth, at the Ubuntu Developer Summit held on October 25th 2010, has announced that the next version of Ubuntu i.e. Natty Narwhal, which is scheduled to be released in April 2011, will feature Unity Shell as the default interface. The Unity Shell was introduced in Ubuntu 10.10 Maverick Meerkat Netbook Edition.

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I have been using gnote for quite some time now instead of Tomboy notes in my Ubuntu 10.10 Maverick Meerkat. Gnote currently does not disable add-ins permanently. However someone may find the Note of the Day add-in useful, it annoys me and I tried to disable it in Preferences>Add-ins, even in the latest stable version 7.2. However, that did not work. So, to disable it, I decided to move the plugin file where gnote would not load from.

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UPDATE: I installed a modified version of dpkg which makes it pretty much faster. Brian Rogers posted the patched dpkg ppa in the bug page.
The patched dpkg can be installed by executing the following commands: Continue Reading

I was trying to install GRASS Plugin for Quantum GIS (qgis-plugin-grass) in my Ubuntu 10.10 Maverick Meerkat while I got the following error in Ubuntu Software Center: Continue Reading

I installed Vuze bit-torrent client and it seems really awesome. It has been written in Java but it is pretty fast and awesome. It has search and many helpful plugins. It has various types of options and configurations and it will sure take me some time to figure out. I installed it from Synaptic Package Manager and got the version 4.3.0.6 (Ubuntu Software Center will do the same). I went to the website and saw that 4.5.0.4 was available already. I downloaded the linux installer (Vuze_Installer.tar.bz2) and unpacked it. I got a directory named “vuze” which contained the files. Then, I just launched terminal and changed the directory to “vuze”, the one that I just extracted.
Then, I just had to copy the files to where they belong. Remember, you must have the version from the package manager installed. Then, I just backed up the original vuze files and then copied the new files over. Continue Reading

Running this commands in the terminal will stop these messages:

gpg --keyserver keyserver.ubuntu.com --recv 61E091672E206FF0
gpg --export --armor 61E091672E206FF0 | sudo apt-key add -

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UPDATE: See the comments below for additional help regarding the issue.

I created a bootable USB pen drive with Ubuntu 10.10 Maverick Meerkat Alpha Daily Build on it using Startup Disk Creator (usb-creator-gtk) in Ubuntu 10.04 Lucid Lynx. This gave the following message during startup: Continue Reading

If you have downloaded an older daily build iso and want to update the iso with new daily build, you can use the zsync utility to get the latest version of daily build without having to download the whole of the new iso.
Install zsync: Continue Reading