Display Down after Lid Closes

I updated all my drivers using DriverMax and then verified those uploads against Intel's updated driver support scan. Both agreed with each other on the updates and that all was well. It was some week later when I was working and closed the lid on my HP dv7 (Win 7 Home Premium) opened it again within 10 seconds and ever since the screen simply doesn't come back after closing the lid. I have set all power options to Max Performance, turned off Hibernation and Sleep with no change in outcome. Checked the updated BIOS (updated via OM Intel site) and no applicable (or at least identified) power settings found. Suggestions welcomed! :confused:

HP dv7 Entertainment

Win 7 Home Premium 64 Bit
i5 460M @ 2.53GHz / RAM 6 GB DDR3
Motherboard HP 163D (CPU)

Graphics - Generic PnP Monitor
ATI Mobility Radeon HD 6370 HP
625GB HD ATA (SATA)