1.1 big problem!! help (got pics) world terrain chunks being moved !!

ok so i have never had this problem until 1.1!! it broke my first server's terrain by shifting all of it in weird ways!! here are pics of what it did!! i didnt know what caused this but i made a new server and this happened again and this time i know what caused it. everything was perfectly fine until i went into the nether portal and when i went out, my mainn world got broken just like my first server's terrain!! so i know that entering and leaving nether causes this but why?? is this one of my plugins causing this?? or a minecraft problem ? please help. im on 1744 bukkit and i have a suspicion that borderguard is causing it but idk. someone that knows more about plugins that can help me determine what is the cause of this problem?

oh yea here are all my plugins: borderguard, bpermissions, creeperheal, deathcontrol, foundbox, homespawnplus, logblock, no cheat, no lagg, orebfuscator, world edit worldguard

 

I assume you had this map before 1.1?

 

nolagg had some issues... see the thread there..

 

LOL that looks awesome. Sorry OP but that sucks, I would always backup your world (as bukkit says to) before testing dev builds. Sorry mate :/

 

thanks i checked the no lagg thread and it was the one causing it

 

yeah a pitty...

 

It's possible to use WorldEdit's //regen command to fix stuff like this. It's pretty fast from my experience so you can select fairly large regions at a time.