Originally Posted by Pookeysgirl
I went through the same thing last night. I had K4PC v 1.4, when I clicked on the icon nothing happened. I went on to Amazons site and downloaded and installed the new version without uninstalling the old and it worked. My tools didn't work, but after uninstalling the plugins and reinstalling it worked fine as well.
Version I have is 1.10.1 (40262) it appears to work ok. Downloaded it from Amazon UK. Didn't uninstall the old version.