Ok i read this and it feels like a good idea. I dont know how to do this though. I'm from a mac universe and now work on pc, so i'm a tad dysfunctionnal ^^
Meanwhile, interresting turn of events : the server that wasn't responsive and according to every test was very dead (on broken disk in a raid), came back from the dead. We put the ******* in a refregirator for a few hours, plugged it back and lives. Seems that the disk became too hot and couldn't respond. What we learn is that the fans are not powerful enough for the work load.
Meanwhile although i feel confident that we can trick indesign. I still think there is a way to edit that becursed file.