Cannot connect 2 wireless router

I have an compaq ipaq pocket pc model 3955 with 2002 windows CE 3.0 os. I've had the wireless card 4 a couple yrs and it worked 4 a while until one day my wireless just wouldn't show up when i scanned 4 available wireless networks. since then my battery has run all the way down and hence reseting my pocket pc so i installed the driver again for the wireless card and still it can't find the wireless network. i have tried restarting my router and my pocket pc and reinstalling the driver.