When iam sending a email to someone, and i can be just starting, or half way thru the email and all of a sudden the cursor stops and I can't continue, till I

hit the wireless signal on my laptop keyboard {f12} key. and then it will let me strt typing again for a lil bit and then it happens again. This has happened to me many times and there is nothing wrong w/ hotmail when i check to see if anything is wrong or not working. Please let me know what to do or something, because this is Getting Really Old Fast!   Thanks In Advance

Wayne Brake