EXC_BAD_ACCESS on device when getting URL contents

Question

Hi Guys
I'm having an issue retrieving the contents of a URL, only when I am testing on the iPhone device itself.
It works fine when I use the simulator but when testing on the device itself I get a EXC_BAD_ACCESS on the following line:
NSString * example = [NSString stringWithContentsOfURL:nsURL];
The device is a iPhone 4 with iOS 4.1
Can someone please help as I have tried everything I can think of?
Thanks in advance

Answer 1

The error occurs when I call [NSString stringWithContentsOfURL:nsURL];
The entire code is as follows:
NSURL *nsURL = [NSURL URLWithString:@"http://www.mywebsite.com/xmlfeed.jsp"];
NSString * example = [NSString stringWithContentsOfURL:nsURL];
Only other thing I can add is that this code is running in a background thread when the app is launched and that the returned data is XML.
I have also tried using TouchXML and the following line also has the same problem:
CXMLDocument *xmlParser = [[[CXMLDocument alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://www.mywebsite.com/xmlfeed.jsp"] options:0 error:nil] autorelease];
The strange thing is that both options work 100% of the time on the simulator. Could there be a flag or option I need to set to allow the app to communicate with the network connection?