I am wondering if I might have the same problem. I attemped an update with restart yesterday. Later in the day my computer wouldn't open Windows correctly, almost had to do a restore point. It finally corrected itself but still said I needed to do an update. I did finally get it done but have problems ever since. Cannot open to my home page via IE. Can however access the internet with Chrome.

Dadoes, I must be running the latest version as the date was Nov. 2014. I have Silent/Gaming Mode UNchecked. I also have Enable Avast Sounds checked. I still don't have sound or the box that comes up. Strange. Greg, it is updating because when I check it has updated after I turn on the computer. I just don't have the box and sound come up like I have had for years. I have the latest version. I guess I will just live with no sound and go into Avast every day to make sure it is updating.

Manually download the up dates from link below : https://www.avast.com/download-update It may also fix the problem

Thanks for the update and a very merry Christmas to all as well. tj