Realtek has published new drivers for their 8139 NIC series. Realtek NIC's are used by a wide variety of manufacturers. Check your device manager to see if your LAN-card is too. If you use a Realtek based LAN-card be sure to grab these: 8139 Win95 3.97
8139 Win98 3.97
8139 WinME 3.97
8139 WinNT4 3.97
8139 Win2K 3.97
8139 WinXP 3.97