Windows Explorer - sorts versus open with Enter key

I have a few shortcuts pointing to folders on my system that have shortcut keys assigned.

The shortcuts work when I press the shortcut key. For example, Ctrl+Shift+M opens Windows Explorer in My Documents.

However, when I'm in a new WE window, and jump to a folder name by pressing the first letter of the folder, and then hit enter to open it, sometimes it sorts the list of folders instead of opening them. Sometimes it works fine and opens the folder when I hit Enter.

Anyone else having this problem or know how to make WE open the folder every time instead of sorting sometimes?

Anyone?