I assume you've checked for duplicates in your particles? That's the most obvious thing, so I always check there.
You can uninstall it, and not do a clea re-install by not deleting the folder in your C: drive. Just uninstall from the control panel. This will keep your personal files there, but sort of "refresh" the CFGs and the coding files. You may have to re-install your markings, however, or any other CFG files you changed, but it is easy. I can gather the downloads you need for you, if you need me to. I know where most of them are.