I have had the same problem ever since the latest automatic upgrade(4.1.357). When I try to enable the On Access Scanner, The pop-up message is, "The AAVM subsystem detected an RPC error. The operation could not be completed." I checked for Windows updates, but my system (WinXP Media Edition) is up to date. Any assistance would be greatly appreciated.
Same here, since the last automatic version update. I'm running 2Kpro sp-4. If I reboot my PC the blue avast ball in the system try shows a little red x or something. If I double click it I get the following error:
Avast: The AAVM subsystem detected a RPC error.
After that it works, until I reboot. I checked my services, avast Antivirus, avast iAVS4 Service, and avast Mail Scanner are all set to automatic. I un-installed Avast rebooted and then installed the latest version, same problem. I don't have any other antivirus app installed. This is realy starting to be a pain.