Hi Guys

I have a few issues with this rig and a couple of questions.

1. Macro key software is VERY flaky and hardly ever works.  Always crashes with an error.  Is there a new driver coming for this?

2. Sound Blaster does not seem to load with my profile but always goes to default

3. My biggest issues is that I made the mistake of ordering AMD twin 7970s in this rig without realising that there is zero driver support and hardly any games support them or Xfire in general.  Can I take them out and put in Nvidia SLi cards?  If so where can I buy the Nvidia cards and cable from please?

Mark.

This is my spec:
Alienware M18x R2 | Processor : Intel Core i7 3920XM (8MB Cache, up to 4.1GHz Overclocked)
Dual 2GB GDDR5 AMD® RADEON HD 7970M CrossFireX
Memory : 8192MB (2x4096) 1600MHz DDR3 Dual Channel
Hard Drive : 256GB SSD + 1TB 5,400rpm SATA
Optical Drive : DVD+/-RW (Read/Write)
Display : 18.4" WideFHD (1920 x 1080) WLED LCD
Camera : Integrated Skype HD Certified FullHD Camera with dual digital microphones
LCD Back Cover : Cosmic Black - Anodized Aluminum