Copy/Paste between Mac and Windows is broken

I screen shot from the mac side or copy an image into the clipboard on the mac side, and when I paste it into windows, it looks like an earthquake hit it.

This hasn't worked for months, sadly. Just today I manually uninstalled Parallels Tools, removed reg entries, cleared temp, and reinstalled. No effect.


Build 9.0.24229
(Revision 991745; Tuesday, April 1, 2014)
Windows 8.1
Mavericks

 

Update: I updated windows to Update 1 and now my screenshots are black instead of earthquake.