Yes , if you see a box with a red X in it it is a picture which you are not seeing. Why I don`t know, but have you tried to move pictures on the web and got this? If so you have not moved them properly. Go to the piccture click on it /properties and you will see the web reference click on that and copy it. You can now move that picture around where you want.
If the above is not the case -- - it could be an advert stopping bit of software maybe? I hope this helps.