Ok the keyint=3:vqscale=1:vqmin=1 is also stuttering after a while. It doesn't build a buffer but is draining it more slowly. The quality is about the same I think. uuhm, CPU is arround 50%, my memorie 61% and my connection is arround 50%.
Now what? Get an ohter router and a cat 6 cable? Or is it even posible that i have a Cat 4 cable? Sinds it doesn't get much higher then 50% conection.. BTW on my comp it realy shows 100mb/s LAN so think that awnsers my own question?
Edit: just read your post, Í'm turning multicore on right now. Gonna try keyint=3:vqscale=1:vqmin=1 again.