Bill, There are times that this happens to me, less the black screen. Double click on the icon on my desktop and the screen is frozen and there is loss of keyboard and mouse control. There are others reporting this also. Seems to happen to me after exiting Netscape. The number of users reporting this seems to be growing.
I have put the icon on to my Start bar and have not had this happen, Yet. One other user has stated that he has seen a differance in the short-cut script or something.