Wireless Card Suddenly Dropping Signal

Hello,

I have a pci wireless card that I have been using with the same router for some time. All of a sudden in the last couple of weeks it suddenly developed some habbit of dropping the signal from the router on random intervals. During the times that it does it, it will do it over and over again for hours sometimes. It will connect, then drop off less than a minute later, then reconnect again. It will just suddenly say "No Connections available", when normally there are at least 3 connections displayed in the list(2 neighbors and 1 mine).

I am using Windows 7 64 bit and I just now did a fresh reformat on the hard drive an hour or so ago to try and rule out the option of conflicting software/drivers/malware and so on. The problem seems to be persisting still.

I have the latest drivers that I can find for my card and updated firmware on the router(same exact setup I have always used).

What other problems might be causing this issue?