Mary L. This happens to me a lot. The red and blue rectangles are aligned but the app is stuck in the "Identifying..." final step, which never ends. When that happens, I just cancel the GoTo operation, switch to star mode and start the capture. The S50 is already perfectly aligned, it just doesn't realize it. This happens in about 30% of my GoTo operations and in virtually 100% of those cases, canceling the GoTo and manually starting aquisition works.