The saga is going on. Finally I turned to my old PC, running WinXP, and updated the Wifi Shield firmware. I got back the same screenshots as given in the process docs. Since I do nor have FTDI cable, I could not check its success except that the screenshots were OK for both files.
Look at what happened with my project on UNO R3 and wifi shield config:
Using IDE 1.0.4, sketch is running well, wifi connection and HTTP requests are OK. Super!
Change to IDE 1.0.5, sketch is uploaded, wifi connection established, but no data traffic , I can not see any HTTP request coming out from the box. What is observable, that the blue data led of the wifi shield is NOT blinking when using IDE 1.0.5.
My Wifi shield does not work with IDE 1.0.5
Firmware update is problematic with Win8, I could only perform with WinXP.
Are there any idea or proposal which can help me?