Mary,
Please start a thread for your problem rather than add an unrelated problem to an existing thread. Try to select a forum like General unless this is directly related to the beta version.
We will also need a little more information to help as well.
- What OS are you using?
- avast! version and VPS file (virus database) number, e.g. 0436-4 (see about avast!)
- What actions have you taken to try and resolve the problem?
Also see this thread for further information and advice
User's FAQ.