I have been using YTD (YouTube Downloader) software on my Windows 7 computer for years, without ever having a problem. All of a sudden I've been getting warnings from both Norton and Malwarebytes that they've blocked a malicious website from both YTD Downloader (the program) and Goobzo (evidently an "accelerator" used by YTD). Is this really a threat? Should I removed Goobzo from my system? How can I do that, and will it compromise the functionality of YTD?