Klipfolio keyboard shortcut for saving a Klip you're working on is ALT-S. This is very handy to e.g. refresh a dashboard and see it in context as you make changes to your Klip.
However Mac OS X sees the Klipfolio ALT-S shortcut as an attempt to type a "ß" (German character) and often replaces a piece of text in your Klip with "ß" as it saves it.
If you're not German, you can somewhat easily disable this Mac intercept by placing a file in ~/Library/KeyBindings/DefaultKeyBinding.dict containing:
"~s" = "noop:";
(Technically you can do this if you're German too, but you might not want to)