I have not tried another keyboard as it is not available . Regarding formats i have tried it on email sending and just typing it generally to no success . Am not sure if that answers your question . It happened early last night and i am in rural India ,so in a short time about to go looking around local area to see if anybody can assist me . Await your reply before going off . Thanks in the meantime for your help and sorry about my replies but i am not unfortunately very computer savvy .