I cant get my n900 to show and connect to any wifi even though i have some around me so i wrote it here and someone told me he had the same problem but after flashing in roots it worked, so tried flashing but still cant get it to find any available wifi when i search even though i have some around me, someone plz help me

There seems to be a bug in the wireless driver on the N900. I later installed Wifi-switcher but when i turn it on it says: CANNOT ENABLE WLAN: IFCONFIG WLANO UP FAILED. Plz can someone help me solve this, plzzzzzzzzz