There's a rather long topic in the Mavericks forum on this same subject. User Oregon Ducky found that it's caused by a corrupt Finder .plist file. By "invisible folder" in the text below, Oregon Ducky means the Library folder in your user account. Other users in the topic have noted removing the Finder .plist file also worked for them.
This has happened a couple of times to me. One of them, I paid Apple for a support call and then summarily forgot what we did to fix the issue. Yesterday, I repaired permissions on my main "drive" (an SSD) and ran disk utility on it, and the problem resurfaced. I don't know if that had anything to do with it, but it seems suspect.
In any event, I went into the invisible "Library" folder/Preferences and moved the com.apple.finder.plist file to my desktop to force the OS to rebuild it, believing that perhaps the finder preferences file had become corrupted somehow. And, this seems to have solved the problem. To access this hidden folder:
HD > Users > Your Name > Library (now hidden; accessible by using Option key while clicking on Go in Finder menu which will unhide it.