I have an ACER Aspire 5 A514-54. After like 2 weeks of having it, screws started randomly dropping out every now and then. Am down like 4 or 5 screws at this point, and the corner of my laptop is beginning to open up. I need to buy replacements but dont know which screws fit it. Also, theres something inside the laptop, when I move it around I can hear something moving inside.