This extract from your System Information should be different. It is revealing that your system is using generic Microsoft display drivers.
[Display]
Item Value
Name Standard VGA Graphics Adapter
PNP Device ID PCI\VEN_1002&DEV_6760&SUBSYS_B084144D&REV_00\4&4DCA75F&0&0008
Adapter Type Not Available, (Standard display types) compatible
Adapter Description Standard VGA Graphics Adapter
Adapter RAM Not Available
Installed Drivers Not Available
Driver Version 6.1.7600.16385
INF File display.inf (vga section)
Section of report removed
Driver c:\windows\system32\drivers\vgapnp.sys (6.1.7600.16385, 28.50 KB (29,184 bytes), 14/07/2009 9:38 AM
Download and install the Windows 7(32bit,64bit) 8.860.0.0 VGA(Graphics), AMD driver
http://www.samsung.com/au/support/model/DP700A3B-S02AU-downloads#
Samsung will have customised the AMD driver for use with your computer.
http://skp.samsungcsportal.com/integrated/popup/FaqDetailPopup3.jsp?cdsite=au&seq=57137
It is conceivable that the graphics card has failed.