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• My nVidia GeForce 8600M GT card stopped working: "extension GLX missing on display 0:0"

  - by Wolter Hellmund

  So I turned on my computer and log into my gnome-shell session to find that the shell is gone, and there is instead a very thick panel with a vertically repeated pattern of the gradient the Unity panel displays. I ran some tests and found out that my graphic acceleration was failing. I have attached some outputs of some commands to help helpers…

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• Tor check failed though Vidalia shows green onion

  - by Wolter Hellmund

  I have installed tor successfully and Vidalia shows it is running without problems; however, when I check if I am using tor in this website I get an error message saying I am not using tor. I have tried two things to fix this: I installed ProxySwitchy on Google Chrome, and created a profile for Tor (with address 127.0.0.1, port 8118), but…

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• How to import Evolution application data from home folder backup

  - by Wolter Hellmund

  I had many folders and filters and mail in general in Evolution on my previous Ubuntu install, which I thought would be available for me for I had backed up my home directory. I have copied now Evolution related folders to my new home directory, and Evolution is not showing either the folders I had or any of the filters. To be more…

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• How to improve Unity Performance?

  - by Wolter Hellmund

  I installed ubuntu netbook edition on my netbook* expecting to get the best performance out of it, but apparently, that didn't turn out. Unity is a bit slow on it, and when I click on Files and folders it takes a while to load the respective interface and the bar at the top disappears and then loads in. Is this expected? Is there…

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• Black frame around screen after HDMI connection failure

  - by Wolter Hellmund

  I was trying to watch a movie in my computer through the TV, so I connected both with an HDMI cable. I was unable to have a successful setup (the colors were all weird on the TV and the screen size, incorrect), I tried many resolutions using the nvidia-settings application and somehow my screen got framed by a black border and…

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• Data Modeling Resources

  - by Dejan Sarka

  You can find many different data modeling resources. It is impossible to list all of them. I selected only the most valuable ones for me, and, of course, the ones I contributed to. Books Chris J. Date: An Introduction to Database Systems – IMO a “must” to understand the relational model correctly. Terry…

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