trustworthy sources that offer adequate security andprotection against harmful software, such as applicationsthat are Symbian Signed or have passed the Java Verified™testing. Consider installing antivirus and other securitysoftware on your device and any connected computer.Important: Your device can only support oneantivirus application. Having more than one applicationwith antivirus functionality could affect performance andoperation or cause the device to stop functioning.Your device may have preinstalled bookmarks and links forthird-party internet sites. You may also access other third-party sites through your device. Third-party sites are notaffiliated with Nokia, and Nokia does not endorse orassume liability for them. If you choose to access suchsites, you should take precautions for security or content.Warning: To use any features in this device, otherthan the alarm clock, the device must be switched on. Donot switch the device on when wireless device use maycause interference or danger.The office applications support common features ofMicrosoft Word, PowerPoint, and Excel (Microsoft Office2000, XP, and 2003). Not all file formats can be viewed ormodified.Remember to make back-up copies or keep a writtenrecord of all important information stored in your device.When connecting to any other device, read its user guidefor detailed safety instructions. Do not connectincompatible products.The images in this guide may differ from your devicedisplay.Network servicesTo use the device you must have service from a wirelessservice provider. Some features are not available on allnetworks; other features may require that you makespecific arrangements with your service provider to usethem. Network services involve transmission of data.Check with your service provider for details about fees inyour home network and when roaming on othernetworks. Your service provider can explain what chargeswill apply. Some networks may have limitations that affecthow you can use some features of this device requiringnetwork support such as support for specific technologieslike WAP 2.0 protocols (HTTP and SSL) that run on TCP/IPprotocols and language-dependent characters.Your service provider may have requested that certainfeatures be disabled or not activated in your device. If so,these features will not appear on your device menu. Yourdevice may also have customized items such as menunames, menu order, and icons.9 Safety