Slow Network to XP

Hi to all!

I have 2 Computers

1. Desktop with Win XP SP1 and a Realtek 10 Mbit Card switched manuell
to Fullduplex
IP 192.168.1.1
GATEWAY: 192.168.1.1
DNS 192.168.1.1


2. A Laptop With a Realtek Chipset and Fedora Core 2 10/100 MBit
Basic Installation, no firewall
IP 192.168.1.42
GATEWAY: 192.168.1.1
DNS: 127.0.0.1

These two are connected via a Crossed Network Cable.
Ping OK.

I run a FTP Server on my Linux and try to copy files via my IE from
Windows. But i only get ~500 KBit speed. To copy images ~200 Mb it
took me 1h.

I looked at Ethereal but i didnt found any strange. Except from some
retransmissions.
I do not have the Problems when I connect to my DSL Modem or to the PC
of my Parents (Win2K).