Downloading Problem to EDU Motherboard

Has anyone had problems downloading using the Basic Stamp Editor 2.0 Beta s/w to the EDU Motherboard? We kept getting a checksum error (#12) is displayed when downloading the object code using the Basic stamploader program. We also got some other message saying the data was corrupted, and we tried this on two different host computers to download to the EDU Motherboard/Robot. Part of the problem we had was the battery voltage was low, but that shouldn’t affect the software on the computer - the stamp downloader (and the Basic Stamp Editor software kept saying the data was corrupted)!:confused: