I recently upgraded from WLC 126.96.36.199 to 188.8.131.52 (WiSM), and WCS 184.108.40.206 to 220.127.116.11. All my heatmaps that contain 1231G LAPs are solid "maroon" (-35 dBm) in color. If I remove the 1231 APs from the heatmap selection on the right hand side, my coexisting 1131 and 1142's display their heatmaps properly. My maps are all CAD format (dwg) converted to .png's using WCS. My goal is to migrate to 802.11n in small steps which our Cisco rep said we could do. Any ideas?