I have a 500GB External Seagate goflex usb hdd and when i play videos (only on my pc) every once in a while it will kind of stutter , the video will pause for a quick second then play fast to catch up and be normal for a few minutes then it will happen again, anyone got any ideas on how to fix this? if i play it on my tv it plays normal and my cpu/ram etc is all at minimal use when playing the video idk wut the deal is.