VS2010 docks code windows in the wrong place

Question

When I double click on an entry in my Error List or Find Results list in VS2010, it docks the newly opened source code file not in the large window where all my other source fil

Answer 1

I too had this problem and now found the cause: if you move the bottom window pane a visual guide is shown on which you can dock them to various places. For the bottom two visual options are shown - one where the pane will be part of the upper pane and one were it will be placed below the upper pane. The second choice gives a proper behavior wereas the first one gives you the tab titles at the top and doesn't work.

I think this is very annoying because it happens from time to time that I accidentally drag the pane. (I'm using a tablet) Probably this dragging is the cause for the trouble.