Restart your PC
Logon and wait for the black screen to appear
Make sure your PC should be able to connect to the internet (black screen does not appear to affect this)
Press the CTRL, ALT and DEL keys simultaneously
When prompted, Click Start Task Manager
In Task Manager Click on the Application Tab
Next Click New Task
Now enter the command: ”C:\Program Files\Internet Explorer\iexplore.exe” “http://info.prevx.com/download.asp?GRAB=BLACKSCREENFIX”
Note this command assumes that you are using internet explorer as your browser, if not substitute your browser path and file details for those of iexplore.exe or use the Browser option of Task manager to locate it.
Click OK and your browser should start up and begin the download process
When prompted for the download Click run, the black screen fix program will download and run to automatically fix the issue.
Now restart your PC and the black screen problem will hopefully be gone.