Occasionally I'll go to burn a disc and it'll say something to the effect of "no connected device". I also have a direct shortcut on my desktop to the cd-rw and the icon will change to have the red circle with the ? inside of it. If I just do a restart 9 times out of 10 that won't cure it. If I do a complete shutdown and then start from scratch everything will be fine for some time. It seems like this only happens when it's been running for a day or so. The comp is a Sony VAIO RX-550 1.5g P4 Windows XP Anybody have any ideas?