Really headache problem.. my phone (iPhone 2G) got a wifi problem after I've upgraded to 2.1 with PwnageTool, the wifi signal almost dead, I choose the word 'almost dead' because sometime I can connect to wifi but it will be logon for only few seconds... mostly it cannot find any wifi network (even put the phone next to router)
This is the difference problem with the 'No wifi' with 'Gray' color shown on setting..:confused:
Any suggestion?

