Over the past few days, I've noticed that the clipboard replacement application I use (Ditto) isn't working any more. Specifically, it isn't copying items to its list. It still shows the history of items copies before, but doesn't add any new items. I am still able to paste past items, so the program is still functional.

It will work for a while after quitting and restarting the program, but then it will soon stop getting new items again.

I've tried using ClipX, another clipboard replacement app, and that doesn't get new items either. This leads me to think this is a Windows problem. I'm on Windows 7, 64-bit.

Is anyone else having this problem? Any ideas on what might be causing it?

Update: I've found that if I Disconnect from the clipboard, then Connect to clipboard again, then it works for a while, but stops collecting items again after 15 mins.