I cant enter alphabets in wifi password in windows xp

[baldev07]

How i an enter alphabets in wifi password on windows xp . I tried to enter alphabets but it was nor at my screen . Please tell me solution fast

 

[popatim]

If its WEP then it may be a hexadecimal key and not a password.

 

[baldev07]

what i can do to fix my problem?