I have been simultaneously running Avast Free Anti-virus and Lavasoft Ad-Aware for several years with no problems. Recently, Ad-Aware has been randomly shutting down for no apparent reason. If I disable Avast, however, it seems to run fine. I have discovered that the latest versions of both programs are very memory hungry and I have only 1 GB. I have ordered more memory for my computer to double it to 2 GB, but it would still be great if I only had to run one program or the other rather than both. Ad-Aware has recently added some virus protection to their program, but I don't know if it is as good or as extensive as Avast's protection. Anyone have any advice or suggestions?