it seems my ps3 has trouble reading the free space on my external hdd? even though i still have for than 100GB+ worth of free space on my external, my PS3 tells me that i only have 9GB space left. how can i fix this??? i just deleted a lot of backup games on my external thru the PC. is there a program that would ensure that these files are deleted so that my ps3 can read it correctly?? thanks agai.