I have a Dell Inspiron 1545 that I got in May of 2010, so it's about two and a half years old. Recently, I noticed that the sound, mostly when playing music while other programs were running, would stutter for a few moments every once in a while. I just got used to it, and ignored it. But today, When attempting to play some music, I first plugged some speakers into the headphone jack, and the music just kept playing through the laptop speakers. I restarted the computer, and tried again. This time, the only thing it would play through the speakers or my headphone jack was mid-level static. I've tried restarting and running diagnostics--nothing helps. IS it possible my sound card is out? If so, are there any suggestions for good, low-cost replacements?