I just bought a new hard drive to add some drive space to my computer. I installed the hard drive and then installed Windows XP professional. No error messages came up and everything seemed to be working fine. After fiddling around with it a little, I realized that no internal speakers were recognized nor was my Wi-Fi working. It recognizes my Bluetooth but does not enable my Wi-Fi. On top of that, when I drag a window across the screen, it is all lagged and jittery. Any help?
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