I've got a problem registering Avast, it was running for a year on my PC with XP with no problems, I then got the message that it would expire and I had to re-register, but whenever I got the dialogue box up and attempted to do this, I couldn't enter anything in the box, no matter where I clicked all I got was the windows error 'bonging' sound, I then had to 'ctrl, alt, delete' to get rid of it, in the end I waited until it expired, uninstalled it and downloaded a new copy, version 5.0.545, unfortunately the new copy expires in 19 days and the same problem has come up again, has anyone any suggestions please.
Thanks