Upon starting my MAC Book Air this morning, Utorrent wasn't working. So I uninstalled it and went to reinstall it. However when I attempted to do so, my AVAST Mac Security popped up with a THREAT WARNING DETECTION ALERT and then a further warning pops up saying; WARNING The following disc images couldn't be opened. Image: Reason: utorrent.dmg not recognized I tried to install Utorrent several times but the same thing happened. Turned the computer on and off again and it still occured. There is now no trace on Utorrent on my MAC even though I have used it for the past 6 months. My MAC is an OS X Vesion 10.6.8 When I have tried to update the software to Mavericks, it doesn't allow me to. But this wasn't a problem when I installed utorrent initially. Please help. Thank you.
