Every once in a while, I will attempt to wake up my computer from Sleep Mode and it will take about 1 to 2 minutes for the screen to show my desktop. A few nights ago this happened only this time I was unable to open any Application. I would click on an Application Icon and it would load for about 3 seconds and then an Error Box would appear saying that Error -36 has occurred. I was unable to take a screenshot of this because that was not responding either. I was forced to restart which fixed the problem at the time. But just last night the computer snoozed again for about a minute. Should I be Worried?