Alienware M17x R3 (I need help)

In case someone wondering to ask, yes my Alienware is still in warranty. But no, I can't take it to dell because I bought it from USA and I live in Cambodia.

When my Alienware first came out of the box, the motherboard was down in the next 5 minutes, so I have to spend over 500$ for sending my Alienware to Malaysia (I transferred warranty to Asia) for replacing motherboard.

After replacing mother, the wireless(killer network) is not working anymore.

I can contacted bigfoot networks, they guided me through some a solution but it won't work so they suspect it to be Athena problem, that maybe it wasn't installed correctly.

Another problem is I am having a hard time getting my laptop to start.
When pressing Power Button, all the lights(keyboard, logo) are on but the screen is black out no matter how long I left it hang in there.
This problem was never happened before, I noticed that it only started after I did a clean installed, maybe some drivers was not installed correctly but after a clean installed, I lost my factory reset restore point, I tried to install AlienRespawn but the it keeps failing during install.


The only way to get it to start is to repeat pressing Power Button for On/Off and then my laptop would start after 5 times or so...

And once it does start, everything seem working fine...

Another problem is that I can't update my Nvidia VGA driver from older version to a new one. My current driver is 296 but newest in Nvidia.com for GTX 580M is 302.42, if I updated VGA driver, sometime the screen would be keep flashing none stop till I restart the laptop.
But it working fine with 296 version.

Can anybody here help me with these problems?

I can't send my laptop back to Dell, it would cost me a lot for the delivery again...