Alienware M15x Problems

Hi:

 

I'm having major problems with my Alienware m15x... which I purchased 9 months ago (still under warranty)...

 

It's been going very sluggish/stuttery... so I decided to wipe the hard drive - and reinstall Windows again...

 

I did this... and updated all drivers... bios... windows update...

 

And it's not performing how it should be. Basic tasks such as browsing the web... youtube... email... is going very slow.
Anyone else having problems?

 

Here is the spec:

 

 

 

Alienware M15x MLK : Base Nebula Red

 

1 1,427.34 1,427.34 S

 

200-74113 N09W1501 1 S

213-12222 Processor : Intel Core i7 740QM (1.73 Ghz,6MB,4C) 1 S

230-11131 Display : 15.6in Wide Full HD (1920 x 1080) WLED 1 S

370-15259 Memory : 4096MB (2x2048) 1333MHz DDR3 Dual Channel 1 S

400-18460 Hard Drive : 500GB Serial ATA (7200RPM) 1 S

429-14426 Optical Drive : Slot Load Blu-Ray RW (Blu-Ray, DVD and CD read & WRITE) Optical Drive with

Software

451-11153 Battery : Primary 6-cell 56W/HR LI-ION 1 S

490-11722 Graphics : 1 GB NVIDIA GeForce GTX260M 1 S

555-12580 Wireless : ROW Intel WiFi Link 5300 (a/g/n) Wireless LAN Card 1 S

555-12578 Wireless : Europe Dell Bluetooth 370 Card 1 S

619-19559 Operating System : English Genuine Windows 7 Home Premium (64 BIT)