how to foramt mini sd card of nokia n73?

Hello, my 2gb mini SD got a virus and then i try to formate it from pc but it did not work and then my pc stops to detect memory card and in phone it shows memory card corrupted and format but when i click yes to format it halt cancel the formation of card remain there and after repeating the process no avail plz help i have not any important data but i want my card back. how can i format it pc is unable to detect it and n73 is unable to format