How do I delete the factory installed yahoo e-mail app? This app started giving me multiple copies of the same e-mail along with weird text messages from 6250 which look like it gave some code with two numbers. I'm guess they were for unread:total messages in my server box. To fix this, I added the K-9 app which is working great; but, my pull down bar still pops up with new e-mails for yahoo. It has an outrageous number of mails and I don't want to open it and delete hundreds of messages every day. I'd rather just get rid of it and work strictly with K-9.