Hey guys, mind my newbie question as I have searched and google'd with no real solution to my problem.

I have the p5k-e/wifi
e8400
4gb
8800gt
vista x64 w/ sp1

The problem I have is the wifi connection.
I seem to get a dropped connection everytime I continuously download for more than a couple of hours.
This usually happens a lot more while torrent'ing.
When I try to reconnect back to my wireless router, the network availability screen shows NO networks available.
The solution? -- I had to restart my computer for the wifi to finally show the 4-5 available networks in the area, including my home network. I'm positive it's not my wrt54gl router as the solution was to restart the computer.

I have the latest wifi drivers from windows update / asus website drivers match. Also, the asus ap solo application that came with the cd is not installed as it caused more confusion.

Is the wifi not able to withstand long periods of downloads?
Is the usb wifi adapter flaky?
Or am I better off with a PCI network card?

I've only had this computer for less than a month, so maybe a bad adapter with the board?

Thanks guys.