Hope you haven't done anything to your phone yet. Have you erased your saved SMS messages? Have you went through all of your emails trash box and erased it? How many pictures do you have? (That really shouldn't matter as long as they are on the SD card.) Then, hit your SMS client, when you bring up the list of texts, hit the menu button, (thesecond one from the left bottom of screen), settings, text message limits, (it goes from 1 to 799), pick how many MMS texts from a contact you want, (1 to 20).