A range check is 1 of 2 things. Corrupted data, or a memory issue with the computer. The way to tell which one you have is try the same search on a different RPRO computer. If it also gets the range check error, then you need to reconstruct. Here is a link to a how to reconstruct video. http://www.bighairydog.com/video/Reconstructing_Rpro.html if the other computer does not get the range check error it is a memory problem with the computer. Reboot it and that will fix this issue. Rebooting the PC’s once a week is a good proactive approach as well.