Just turned on computer and my avast icon in the traybar had a red x going through it. I then had a message that said " UI failed to load, this is really embarrassing, AV service is not responding." Under that message was a box with exit written in it and next to that it said restart service. I have trid doing that with no results. Today we had cable men change over the connections, could this possibly have anything to do with it? Version is 17.5.2303. This is an old computer I use mainly for playing games, it is an xp version......I KNOW it's really old!!!! Thanks for any help I can get.