If CallGraph Browser fails to start or if you get an error message similar to the following
Error: Platform 5.0 is not compatible with minversion> =1.8 maxversion<= 2.0
Then please download and install the following setup to fix it.
After the install finishes, please restart CallGraph. To restart CallGraph, please right click on the CallGraph System Tray icon and choose Exit from the popup menu.
Please note that CallGraph will still work fine without the CallGraph Browser. Skype calls will still be recorded and saved in your PC’s My Documents\My Call Graphs folder (or wherever you have set it to). The CallGraph Browser is User Interface which allows you to manage your recorded calls. It is a Mozilla XULRunner application and depends on the XUL runtime. If you update Firefox or uninstall it CallGraph Browser might stop working.
Please check the following link if your calls aren’t being recorded correctly.