Windows 7: Incorrect IP Packet Checksum

System Manufacturer/Model Number Custom Built by me.
OS Windows 7 Ultimate 64bit SP1
CPU Intel Core 2 Quad Q6600
Motherboard Gigabyte GA-X38-DS4
Memory 2X2GB DDR2 PC6400 800MHZ DUAL CHANNEL
Graphics Card XFX RADEON HD 6850 1GB GDDR5
Sound Card 2/4/5.1/7.1-channel Realtek High Definition
Monitor(s) Displays Samsung LE40A656F1 1080p 100Hz LCD HD TV 50,000:1
Screen Resolution 1366x768 in Desktop,1920x1080p in gaming and video

Keyboard Wireless Logitech LX710
Mouse Logitech Wireless Gaming Mouse G700
PSU THERMALTAKE W0229 TOUGHPOWER XT 750W
Case A-Case Twin Engine BB
Cooling 3 x thermaltake smart case fan II + 1 arctic cooling fan
Hard Drives C:\WD VelociRaptor 150 GB,10,000 RPM E:\WESTERN DIGITAL WD15EADS 1.5TB CAVIAR GREEN SATA2 F:\WESTERN DIGITAL WD15EADS 1.5TB CAVIAR GREEN SATA2
Internet Speed ADSL 12000 plus
Other Info Mouse Logitech G700,with 13 buttons who needs keyboard in RPG? D:\Sony high speed sata Dvd Rewriter Logitech Cordless Rumblepad 2

System Manufacturer/Model Number Scratch built
OS Windows 7 x64 Ultimate
CPU i7 960
Motherboard Asus P6X58D
Memory 12 Gig Corsair Dominator
Graphics Card Nvidia 480
Sound Card Maudio Delta 44 + breakout box
Monitor(s) Displays Dell UltraSharp U2410 24in and Samsung 21 dual monitors
Screen Resolution 1920x1200 and 1280x1024

Keyboard Logitech G15 + N52 game pad
Mouse Logitech MX518
PSU Corasair TX850
Case Cooler Master HAF
Cooling Corsair H50
Hard Drives Primary: Intel X-25M G2 160G SSD Secondary: Segate baracuda 1.0 TB HDs in AHCI mode.
Internet Speed 15kbs down 4.5kbps up
Other Info WEI 7.6 CPU & RAM 7.6 Graphics 7.9 Hard disk 7.7

System Manufacturer/Model Number Custom Built by me.
OS Windows 7 Ultimate 64bit SP1
CPU Intel Core 2 Quad Q6600
Motherboard Gigabyte GA-X38-DS4
Memory 2X2GB DDR2 PC6400 800MHZ DUAL CHANNEL
Graphics Card XFX RADEON HD 6850 1GB GDDR5
Sound Card 2/4/5.1/7.1-channel Realtek High Definition
Monitor(s) Displays Samsung LE40A656F1 1080p 100Hz LCD HD TV 50,000:1
Screen Resolution 1366x768 in Desktop,1920x1080p in gaming and video

Keyboard Wireless Logitech LX710
Mouse Logitech Wireless Gaming Mouse G700
PSU THERMALTAKE W0229 TOUGHPOWER XT 750W
Case A-Case Twin Engine BB
Cooling 3 x thermaltake smart case fan II + 1 arctic cooling fan
Hard Drives C:\WD VelociRaptor 150 GB,10,000 RPM E:\WESTERN DIGITAL WD15EADS 1.5TB CAVIAR GREEN SATA2 F:\WESTERN DIGITAL WD15EADS 1.5TB CAVIAR GREEN SATA2
Internet Speed ADSL 12000 plus
Other Info Mouse Logitech G700,with 13 buttons who needs keyboard in RPG? D:\Sony high speed sata Dvd Rewriter Logitech Cordless Rumblepad 2

System Manufacturer/Model Number HCL
OS Winbdows 7 ultimate x64 | Ubuntu 12.04 x64 LTS
CPU Core 2 Duo e7400 @ 2.90GHz
Motherboard Gigabyte G31M-ES2L
Memory 3GB DDR2
Graphics Card Asus Nvidia GTX 560Ti 1GB
Sound Card On-board
Monitor(s) Displays HCL eZeeBee 18.5" LCD
Screen Resolution 1366x768 @ 60Hz

Keyboard Stock
Mouse Stock
PSU Corsair CX500 V2 500W
Cooling Stock
Hard Drives Western Digital 320GB
Internet Speed 15-25kBps D/L | 10kBps U/L | Hey Don't laugh

System Manufacturer/Model Number Custom Built by me.
OS Windows 7 Ultimate 64bit SP1
CPU Intel Core 2 Quad Q6600
Motherboard Gigabyte GA-X38-DS4
Memory 2X2GB DDR2 PC6400 800MHZ DUAL CHANNEL
Graphics Card XFX RADEON HD 6850 1GB GDDR5
Sound Card 2/4/5.1/7.1-channel Realtek High Definition
Monitor(s) Displays Samsung LE40A656F1 1080p 100Hz LCD HD TV 50,000:1
Screen Resolution 1366x768 in Desktop,1920x1080p in gaming and video

Keyboard Wireless Logitech LX710
Mouse Logitech Wireless Gaming Mouse G700
PSU THERMALTAKE W0229 TOUGHPOWER XT 750W
Case A-Case Twin Engine BB
Cooling 3 x thermaltake smart case fan II + 1 arctic cooling fan
Hard Drives C:\WD VelociRaptor 150 GB,10,000 RPM E:\WESTERN DIGITAL WD15EADS 1.5TB CAVIAR GREEN SATA2 F:\WESTERN DIGITAL WD15EADS 1.5TB CAVIAR GREEN SATA2
Internet Speed ADSL 12000 plus
Other Info Mouse Logitech G700,with 13 buttons who needs keyboard in RPG? D:\Sony high speed sata Dvd Rewriter Logitech Cordless Rumblepad 2