nve0: device timeout (1)

I've recently upgraded one of my home PCs from Intel Celeron to AMD Athlon. I 
used to have Marvel Gigabit network (sk), and now I have nVidia nForce 3 
network - nve (witch man says: "First appeared in FreeBSD 5.5", so it has not 
appeared yet? :-)

The problem is that if this interface is online and I run something that uses 
network (for example XChat, or even Quake 4, witch is always accessing 
127.0.0.1 for ID Server), then like every minute (interval is not always the 
same) the computer hangs absolutely (even mouse is not moving) for like two 
seconds and then "Jan  2 09:41:12 gamer kernel: nve0: device timeout (1)" 
falls on tty0.

And dmesg says:
Jan  2 09:39:13 gamer kernel: nve0: device timeout (1)
Jan  2 09:39:13 gamer kernel: nve0: link state changed to DOWN
Jan  2 09:39:14 gamer kernel: nve0: link state changed to UP
Jan  2 09:39:44 gamer kernel: nve0: device timeout (1)
Jan  2 09:39:44 gamer kernel: nve0: link state changed to DOWN
Jan  2 09:39:46 gamer kernel: nve0: link state changed to UP
Jan  2 09:40:16 gamer kernel: nve0: device timeout (1)
Jan  2 09:40:16 gamer kernel: nve0: link state changed to DOWN
Jan  2 09:40:17 gamer kernel: nve0: link state changed to UP
Jan  2 09:40:48 gamer kernel: nve0: device timeout (1)
Jan  2 09:40:48 gamer kernel: nve0: link state changed to DOWN
Jan  2 09:40:49 gamer kernel: nve0: link state changed to UP
Jan  2 09:41:12 gamer kernel: nve0: device timeout (1)
Jan  2 09:41:12 gamer kernel: nve0: link state changed to DOWN
Jan  2 09:41:13 gamer kernel: nve0: link state changed to UP
Jan  2 09:41:22 gamer kernel: nve0: device timeout (1)
Jan  2 09:41:22 gamer kernel: nve0: link state changed to DOWN
Jan  2 09:41:23 gamer kernel: nve0: link state changed to UP

and so on.

This, you know, spoils all the mood from upgrade. Do I do something wrong or 
is that driver or is that the device?

First I thought that it was overclocking problem, but no, I've set everything 
to default and the problem stays.
I use this PC for games, no secure data or anything else is there, so if it 
would be necessary, I could provide ssh shell to it.
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С уважением, Бачило Дмитрий
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