Hi, I'm running Nod32 on a medium sized site with a bunch of machines. For some reason, this one machine does not like doing updates. When it tries to update it generates the message: During execution of Update on the computer XXXX, the following warning occured: Error occured while updating program modules (Cannot replace the current file.) When I try rebooting, AMON will no longer start and I get the messages: During execution of NOD32 Kernel on the computer XXXX, the following warning occured: The Virus Scanner could not be initialized. NOD32 System modules may not function properly. and: During execution of AMON - Antivirus monitor on the computer XXXX, the following warning occured: Unable to load resident protection. The only way I've found to fix it so far is to completely uninstall and reinstall Nod. It will then do the update off the local mirror find, and may even be fine for an update or two, but eventually the problem starts to reoccur. It is a WinXP professional machine. We have a few of these and this is the only one that seems to have this trouble. I've looked through file permissions and such and nothing seems amiss. It's a pity the first error message doesn't tell me precisely which file it can't update... Thanks in advance for any help. E.