I was traveling for several weeks when (i) all of a sudden no sound came out of my laptop speakers. Also, (ii) my windows updates failed. I hooked up some external speakers and still no sound. I went to device manager and did not find any problems. I also tried a system restore but could not find a date prior to the problem. I copied down something called a cbs log but I don't understand it (it is supposed to tell me where the windows update problem is). Any suggestions on these two issues (I am assuming that they are related). Thank you.