slow gigabit transfers via samba

[legoman666]

First off let me state that my transfer speeds on the same computer with win xp are rediculously fast (260mb/s) between 2 gigabit enabled computers.

Now with Ubuntu feisty (which i install like 2 days ago, so I know nothing about linux), I'm getting about 90kb/s, which sometimes spikes to 200kb/s for a second or two. Do the math, my speeds over the network decreased by a factor of ~370. This is unacceptble.

I still get the same speeds over http (320kb/s or so) in ubuntu.

my network card is a "RTL8111/8168B PCI Express Gigabit"

with these slow speeds, im not able to stream movies from the other computers on the network (all gigabit, and yes the switch is gigabit obviously) in win xp, im able to stream a hd-dvd or blu ray or other 20000kbps h264 content perfectly fine over the network. Now it took an hour to copy a gigabyte from a windows share.

any clues? if possible, could you be very specific with suggestions? Complete linux newbie here. So far I am liking it, but this is pathetic.