With Acer Laptop Aspire model 5532, Acer BIOS 1.07, scheduled virsus scans will not start. Have had the same issue with three sucessive anti-virus programs in last week. I set the scheduled time correctly, but the scan does not start. Currenly using MSE; manual scans work and the system catches viruses that were attempted to load. Had exact same problem with AVG and McAfee. And the clock in the Notification Area shows the correct time.