Who do you complain to when you are having E-Mail problems with the new format?

This is the second E-Mail I have sent on this subject. The new format is not good at all when I want to send an E-Mail my address book does not show up, like the old format . I no sooner open my E-Mail when all kinds of pop ups appear, then the computer locks up. All in all the new format stinks. I WANT THE OLD FORMAT BACK. harvkal@yahoo.com HARVEY KALFIN 910-326-7226