We are experiencing the Vista black screen of death (black screen with cursor) on login to our Vista PCs. It is occuring on three PC's now and we have narrowed the cause to IE8. eg the problem occurs after the IE8 upgrade install. We can successfully login to the account if we remove the network connection(s). We are running a SBS 2008 server - recently setup. Other Vista PC's without IE 8 on the network are fine. We have scoured Google and found many causes of this "black screen" - but nothing similar to this one. Has anyone experienced anything similar?