Yahoo mail problem!?!?

my mail was working good, i got my account in june 2006 but when someone sends me a message it doesnt show the message it only show who send it to me why anybody knows how to fix this problem?i kbow how to read it by printing it but i mean when you lost your pword and it says it send it to your mail to reset it but it wont show it any1 kow to fix it plz!?!