k first, as Major said, it doesn't matter when over a network what fat you are using that will only matter if on the same box. Second, you said you can NOT browse to the mentioned computer, however you can ping it, right??? Okay, when you ping it is it also resolving the name (as in when you ping it will show the IP address then after that will show the name of the computer). If it is not then you have a translation problem. also on the XP system what is listed in event viewer? You may want to try removing the netBIOS component and reinstall (reinstall you DUN) on the 98 machine.