btyahoo.I'm not a btyahoo user.? I had this account set up and it was working fine. Removed it (why!?) & then I added it again & it keeps chucking this 0x800CCC0F, 553 error at me. So now I've removed it, but want to use it! I don't have a BT line nor am I a btyahoo user. My sisters mail retrievel is working without hitch & I am the one that set them both up?!