Thank you all guys.I did EXACTLY what you said and i imported the image i wanted as a material in the material library.However another problem appeared.I wanted to use this image as a picture for a monitor in a poser scene i made (so that the monitor wouldn t be black).However when i try to upload the material on the monitor screen,though it seems that something is happening (the object changes colour when i import the material),when i render it ,the screen is still blank.It has changed colour but it s blank.However when i use this material to some other object it works perfectly.Ok i know that if this happens there s something wrong with the object and not with the material but whyyyyyy does this happen??????Can you help???

Thank you all!!!!!!