I have a Zepto (company went bankrupt) computer with a Vista peremium 64-bit os. For about 2 months ago i reinstalled the computer but it was yesterday i needed my wlan card for first time. I can use my wlan but i can use wired internet. I have tried both old and new drivers. I got the computer wlan switch on but i still can't enable wlan under Network connections. Everything under the device manager is installed and working correct. When i enbale My wireless network it does not change. It is still disabled. When i try to enable it true my Ralink (wlan card distributor) software it just say "Switch radio state fail". I'm completely out of ideas now. Help will be appreciated.