Help Mobile network internet not working

[E Gadus]

Recently got HTC Desire. It worked fine for a week or so but now I can't get on the internet via the mobile network. It works with wi-fi but when I don't have a wi-fi connection it won't connect to the internet, even if I have near-perfect signal. I am on vodafone in Ireland by the way.

 

[SUroot]

Are your apns correct? Check them with your network

 

[E Gadus]

I changed the apn settings to the ones provided by vodafone. But it still won't work.