I am helping work on a friends macbook pro. She keeps getting messages like storage is full, even when trying to save something as small as a word document. However when I go to "Get Info" on the hdd. It says that I have over 104 GB free, with a capacity of nearly 150GB total. When I try to empty trash (that has only like 4 or 5 images in it) it gives me an error and cant delete items. I believe error code 50. Any help would be awesome. I am a fairly experienced mac user and am totally thrown. I have verified/repaired the disk as well with no change.