Need a little router helpFollow

My laptop went up on me about a month ago so I decided to buy a new one. It was about time.

HP HDX 16-1160US Entertainment Notebook PC
Intel® Core™2 Duo Processor P8600
6GB installed memory
500GB hard drive
LightScribe SuperMulti 8X DVDñR/RW with Double Layer Support
16.0" Diagonal High Definition HP BrightView Infinity Display
HP Fluid Imprint finish, HP Webcam with integrated digital microphone & integrated Fingerprint Reader
Intel® WiFi Link 5100AGN & Bluetooth
5-in-1 integrated Digital Media Reader
Weight 7.06lbs
Microsoft Windows Vista® Home Premium 64-bit with Service Pack 1

I get it home and it won't hold a connecton to my router.

I have a linksys G router.

Now, I have 2 xbox's and a desktop that are all connected wirelessly just fine with no problems. My old laptop connected just fine with no problems. So logically (or so I thought) there must be something wrong with the computer....

So I return it and get another one.... Same computer.... Same problem.

Now someone told me it might have something to do with it being a "G" router and the laptop was searching for an "N" router so I went in and turned off the "N" settings so that It would only look for G.

No luck...

Any suggestions? Now, I'm far from computer savvy and know enough to download my game and play. I'm at wits end and the only thing I can think of is to try another router.

I apologize in advance is this makes no since as I'm not 100% sure what I'm talking about anyway. Any help or ideas would be great.

Yes, I've even called linksys and had them reset it from their end. I have no idea whats going on. I'll connect for about 15min then I disconnect again. Its very frustrating.

I called them, spent an hour on the phone with them for them to "reset" my router then told me to have a nice day.