Alright, so we currently have 7 cities and a fairly low player population, so checking all of them every day is very difficult, and doing it more often than that is impossible. Now, I'm not entirely sure if you would actually refer to this as a chunk error, but it's basically sections of the map that randomly restore to their default. (eg building gets replaced by original landscape's mountain). This happens at least once a day, and often wipes out 1-2 structures per chunk, although it's not unusual for it to be more. Even with auto backups, there is nothing I can do, because there is no way of telling when they happened and I always end up wiping user's work. So I just wanted to find out if this is common, if it's a plugin im using, if there are any troubleshooting options,etc. Server info: Craftbukkit build-165 Plugins-Elevator,General,iChat,MagicCarpet,OChestDump,Permissions,SearchIds,Warp,woolcolor,WorldEdit,WorldGuard Server was run with .5gb RAM for a while since no one complained I forgot to change it for bukkit. Just changed it (moments ago) to: @echo off "%ProgramFiles(x86)%\Java\jre6\bin\java.exe" -Xms1500M -Xmx1500M -jar craftbukkit.jar pause Computer info: Windows 7 home premium x64 Java 1.6 Any suggestions appreciated, amazing community forming so far, so appreciative of the enthusiastic response to bukkit.