Hi Zeb77,
Thank you for visiting the HP Support Forums and Welcome. I have read your thread on your HP Notebook and getting a blank or black screen on startup. Try performing a hard reset. When performing a hard reset please note remove any and all USB devices, and remove memory cards from the card reader slot. Disconnect all non-essential devices. If that does not help try to turn on the computer you start to press F11 repeatedly till the menu opens. You can do a system restore. If it is not happening in safe mode it would be something that has been added to the computer. Restoring the computer could return the settings to the last good configuration.
Hope this is helpful.
Thanks.