For the last 2 or 3 days XP keeps telling me that my antivirus software may be out of date. I use Trend Micro Internet Security and Trend inform me that I have the latest updates. I have run a virus scan and no viruses have been found. I also have Spywareblaster, AdAware, Spybot Search&Destroy and A2 on my computer. All theses are the latest addition and report no problems. Windows reports no critical updates available. I have tried system restore and clearing temp internet files etc. The problem went away for a day but has now returned. Should I just turn off Security Center alerts and ignore the problem?