Everytime I try to download CCleaner, my McAfee Virus Scan pops up and says that the ccleaner125.exe [or whatever] is infected with a prockill-df trojan virus, and deletes it. Can anyone explain why I am getting this message? It happens when I download from the main site, from download.com, and from a few alternate sources. It is frustrating because I've used CCleaner in the past and have loved it, and would love to install it in my new computer. Thanks in advance!