Hi Overload and Welcome to The Forum.
As you say, you've updated all your drivers. Have you considered updating your system/drivers to SP1?
Norton is known to be a cause of BSOD's on many Windows 7 systems. I suggest that you uninstall Norton using the Link Removed in Safe Mode. Download Blue Screen friendly Link Removed due to 404 Error as its replacement. Make sure Windows firewall is enabled!
STOP 0x0000001E: KMODE_EXCEPTION_NOT_HANDLED
Usual causes: Device driver, hardware, System service, compatibility, Remote control programs, memory, BIOS.