Thanks andy

The problem why it did not work over WiFi was the WEP encryption from the router. Now that I have not encrypted my wireless connection, I was able to connect to the PC the iPronto.

Another problem I have left, that's the touch screen sometimes not working properly. I mean I press the buttons a little further right to press on the screen. If I want then calibrate the touchscreen, I get "failed Calibration" as an error only.
Is this normal or is my iPronto broken?

sorry for my bad English, but google can not so good English ;-)