yeah exactly what the Thread post says! something is using up all my macbook's memory i checked right now and it says it is 77.68 GB available when this morning it said it had 88 GB left!! ahh what is it? i dont have time machine set up to it so it's not that. i thought it was iDisk but i deleted all of the idisk folders and still no changes!i deleted some folders i no longer used but it only went from 77.58 GB to 77.68 and now is at that...! i do not know what else to do! i have not saved any file with a huge load of memory from now and this morning and plus i use my flash drive to save things on... unless i am trully going to want to keep it for a long time, which i have not saved a thing today...! so help! please thanks!