Hi Tighe, Thank you for detailed steps for reproducing the problem. I was able to find the bug quickly and fix it for the next beta/release. 73, Paul -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-SVGA-WaterFall-Marker-Issue-tp7597230p7597269.html Sent from the Elecraft mailing list archive at Nabble.com.