Hi Manfred and Erel ,thanks for both of your suggestions , checked the asus no updates and usb debugging is on and enabled there, I checked the driver and it went from 8 to 9 no difference and updated about 9 other items no change , turned off firewall , also no joy , sequence is as follows linking to device , toastmessage on android waiting for debugger to connect then it goes off and back to normal screen on android , and completed sucess , in dialog window on IDE followed about 30 seconds later by the error message unable to connect with device but a new icon has appeared on device and I am not sure exactly what is going on but some times it can run the program other times it says waiting for debugger to connect , if I keep waiting evenatually I can run the new program but I am not sure if it is the new program or not , its not reliable , in fact the screen is at odd times showing waiting for debugger to connect , can I go back to the old version of IDE how do I where do I find this file ?