I'm wondering if this is a problem or not. You know how you type one of two letters of a persons name or e-mail and windows 10 mail will give you SUGGGESTIONS and then you can pick from a list for example: if I type in the TO: field and hit SM..... all the people with SM in the name will pop up and let you choose them. well it doesn't seem to do that for me anymore. Did I disable that feature somehow, and if I did where can I turn it back on?