Latest 3DP Net Download : http://www.3dpchip.com/3dp/chip.php?driver=dp_net
Latest 3DP Cleaner Download : http://www.3dpchip.com/3dp/chip.php?driver=cleaner
CPU : AMD V120 Processor ( http://vga.pe.kr/3dp/chip.php?driver=amd_cpu_907 )
Motherboard : [Satellite C655D] AMD 890GX / 880G / 785G ( http://vga.pe.kr/3dp/chip.php?driver=ati_mb_907 )
GC : ATi Mobility Radeon HD 4200 ( http://vga.pe.kr/3dp/chip.php?driver=ati_gc_mobility5000_907 )
Sound Card : Conexant Cocoa II HD SmartAudio 221(CX20671) ( http://vga.pe.kr/3dp/chip.php?driver=conexant_sc_20671_907 )
Sound Card : Unknown 10024383 HD Audio ( http://vga.pe.kr/3dp/chip.php?driver=hdaudio_907 )
Ethernet Card: Atheros AR9285 Wireless Network Adapter ( http://vga.pe.kr/3dp/chip.php?driver=dp_net )
Ethernet Card: Atheros AR8152 PCI-E Fast Ethernet Controller ( http://vga.pe.kr/3dp/chip.php?driver=dp_net )
Memory : 1.74GB
O/S : Windows 7 Home Premium N SP1 64bit
3DP Chip (http://www.3dpchip.com) - Chip Ver.110914
Driver package isn't needed for DVD drive. O/S has a integrated DVD driver.
In your case, O/S or hardware problem.