Hello all. I own an Inspiron 600m that I've had for about 3 years now. About 18 months ago the microphone jack stopped working, which I attributed to the fact that my computer had been in close proximity to a lightninig strike while plugged in, and since that had taken out the internal modem I believed it probably crippled other parts of the system as well. However about 2 months ago it began working just fine again, only to break down again recently. I've tried using multiple different microphones in the jack but nothing seemed to work, only providing heavily distorted buzzing if it picked up anything at all. My question is does anyone have an idea why it broke, worked, and then broke again, and what, if anything, can be done to fix it?