Hi Linzwithaz,
As you have performed almost all the troubleshooting steps including operating system reinstall and reseating the card, in my opinion it seems that the issue is with the wireless card amd you may consider replacing it.
For the correct order to install drivers, you may refer to the link: http://dell.to/ZoD26H.
You can check the warranty details of your computer by visiting the link: http://dell.to/10GaKAc, enter the service tag of your computer and click on Warranty tab.
If the system is not covered under warranty and you are residing in the US, you can contact dell spares at 1-800-372-3355 or you can get it from a local store.
Please feel free to reply for any further question. I will be glad to assist you.
