I have had this before, If you have a mac, i can not help you, but if you have a Microsoft here is what you do, 1st make sure your Hard drive's memory is not full, if it is you will have to delete files. 2nd if your hard drive is not full, go to the Blockland folder, right click and click on Properties. Then look at the read only check box, if it is marked unmark it. Then it will bring up two more boxes saying something like, apply to folder and apply to folder and sub folders. click on the second one. You may have to restart computer, also may want to repeat if you have a stubborn XP from 2003 that is indestructible like mine.