Yesterday the mouse froze (out of the blue after the comp worked fine for several days) and when I checked the keyboard I realized it also was frozen. I opened the back of the battery and took out the half centimeter wide copper looking cable out of its slot (the one next to the keyboard ribbon cable). I wiped the end and put it back in after which when I tested the mouse and keyboard both worked fine again as they should. I believe it may have something to do with the topcase or the same cables. Is there anyway for me to check this because sometimes also when I type it takes really long to load or the figures do not appear. Thanks in advance for any assistance.