Problem: On Windows Vista or Windows 7, or Server 2008 (XP activation could very well have the same bug) After I try and activate Windows, I receive the error code “8007232b” and the error message “DNS name does not exist.”
(Variations on message might also include: “Key management services (KMS) host could not be located in domain name system (DNS), please have your system administrator verify that a KMS is published correctly in DNS. “)

Cause: According to Microsoft, users who downloaded these operating systems from the MSDN/Technet are using the product under volume licensing, which requires KMS on your domain — a domain you likely do not have in the first place, with a service you probably wouldn’t be running in a home installation — though this issue could easily affect the commercial world as well.
Microsoft words it like this: “If you use MSDN, TechNet, or MAPs, you probably have volume-licensed media and were supplied a Multiple Activation Key (MAK).”

Solution: Open Command Prompt as an administrator
(Press Start, type CMD, right-click CMD and click “Run as Administrator” — a UAC prompt may ask you to verify this action.)

Type the command:
slmgr -ipk product-key-here
(where “product-key-here”, type the product key you received from the MSDN/Technet WITH dashes.)
Example: slmgr -ipk FGX5-AFDA8-85ASD-5ADF5-FDA5
(That product key is fake)

Press ENTER after typing the command, and wait for a box to prompt that the action has completed (takes 10-15 seconds in most cases).

Run the activation wizard again (Right click “Computer” from the start menu, click “Properties”, and scroll down to the bottom of the properties window to “Windows Activation”

Sources:
Direct from Microsoft (contains two other solutions you can try if this fails)
http://support.microsoft.com/kb/929826

Technet Forums:
http://social.technet.microsoft.com/Forums/en/winservergen/thread/3d1e007e-a5b0-453a-b92c-17696b93dfc2

If you use MSDN, TechNet, or MAPs, you probably have volume-licensed media and were supplied a Multiple Activation Key (MAK).

Details: Ubuntu 11.04 BETA I fails to allow use of Unity Desktop when a nVidia GeForce Go 7300 is used.

Problem: The new nVidia driver introduced with Ubuntu 11.04 is not actually compatible with said card.

Solution: Simple.
First, to get into some kind of desktop, get back to the Ubuntu login screen (you can NOT get the desktop to un-freeze, you may have to force shutdown or do some other complicated things).
At the bottom of the login screen, select a different desktop to use. The drop-down box is set to Ubuntu as default. Instead, select “Ubuntu Classic (no effects)” and log in.

Your desktop should now load with the traditional Gnome interface. Don’t walk away just yet, as full functionality is just a moment away:

Open (under System) “Additional Drivers”, find whichever nVidia driver is installed and remove/deactivate it. Restart your computer.

Login and open Additional Drivers again, and install/activate the driver named “Expiremental 3d Support for  nVidia cards”. Restart your computer, and change the desktop in the login-screen drop-down box back to Ubuntu.

Ubuntu 11.04 with the Unity desktop should load successfully.

Please comment if this post worked for you, as well as other solutions you may have found.