Hi. Recently moved to using NOD32 from macafee. On one of our windows 2003 servers Nod32 is detecting this possible virus. 19/08/2008 10:24:50 Startup scanner boot sector MBR sector of the 1. physical disk probably unknown TSR.BOOT virus unable to clean. Am not sure if its a false positive or not. We have other HP proliants here that are ok, This is the only one using a smart array 5300 raid controller though. An ondemand scan of the boot sector also shows the same. "MBR sector of the 1. physical disk - probably unknown TSR.BOOT virus " Im not sure what to do next, whats your opinions ?