When in ANY view I select a file or folder. Then I double click (or single click) another file or folder and now the previously selected item is opened instead of the item which was double clicked (or single clicked) afterwards.
You need to deselect the previously selected item by single clicking on it. Now you can select or open another file or folder.
Have you tried setting IE8 or IE9 compatibility in the index.php file? Normally this would go directly under the <HEAD> tag. Aja is a little different… We have not switched to IE10 yet because of the compatibility issues with our legacy reporting software.