I have no idea why Microsoft does this. They took the autoscroll functionality from Visual Studio 2010!
So, to solve this problem I found this extension!
VS2010AutoScroller - Release: AutoScroller v0.4.2: "AutoScroller.vsix"
After you finish download the file, you can copy the file into %appdata%\Local\Microsoft\VisualStudio\10.0\Extensions
folder.
Then you open VS2010 and... enjoy it!
