So I'm running Tekkit on a Ubuntu server and I'm accessing it from a Windows pc on the lan. Everything seems to run well for me when I'm in survival mode but as soon as i change into creative mode i start running into trouble. Any time i try to click on an item the client crashes and tell me internal server error. I have tried to delete and reinstall minecraft and the tekkit loader but the problem continues. Also i have tried to change the server properties text file gamemode to 1 for survival. I have also tried setting the game to survival by doing a /gamemode <name> 1. No matter what anytime i click on an item the client just crashes. Anyone know how to fix this?