pop up

[#1]

Hi all.
          When i log in to webmail as of today, a pop up appears over the webmail button with the word coupons. There is a delete button,but has little impact. It is causing me probs to sign in, anyone else having the same problem? Have run my two anti virus tools,nothing reported.  Thoughts please.
                                          Hellsh12

[#2]

Hi all.
          This is an update to my earlier post re pop ups. I have tracked down this to yantoo layers,was able to uninstall thru c/panel=programmes and features.  At least you will be all aware if this pop up appears on your p.c.  Strangely enough, it only appeared in plusnet webmail log in.
                                                            hellsh12

[#3]

Posts merged so we can see what is being explained