I saved a few inventories in the NEI menu, left the world, closed tekkit, and upon reopening the same word in the same tekkit version, there were no saves. All seven slots were blank, and I can't even predict when the save states wipe. I never press the x buttons, and it seems to work just fine about 80% of the time, but when the save state is deleted, it's gone. I really hate having to re-do the saves every so often. Is there any fix for this? Is there anywhere I can find the save states in the files, to maybe copy manually? What do I do?