Hi, it's been a while!

I've been off csound for at least a year, probably more.
It's always on my mind though, and circumstances permit
that I am able to delve back in for a while.

I remember getting rather astonishingly low latency controlling
csound from my midi keyboard in the past.  I've made a new simple example, and
am finding that I have to set buffer sizes to around 8192 samples
to avoid buffer underruns!  Needless to say, this is too slow
for keyboard playing.

I'm on a fairly quick machine, running kubuntu 8.04.  I tried
installing the realtime kernel, but there doesn't seem to be
any benefit from booting it, and it invariably crashes after a while.

Can anyone see what I might be missing, or suggest any tweaks
to try?  Under the below example, I get constant
"WARNING: Buffer underrun in real-time audio output"
They don't go away until I use huge buffer values.

I've achieved beautiful results on this box previously,
but with a different installation.  

Thanks,

Toby

The soundcard is an echo Mia MIDI.

**Csound version 5.08 (double samples) Apr 16 2008

**CPU:  
	Intel(R) Core(TM)2 CPU @ 1.86GHz

**Command line:

sudo csound\
              -+rtaudio=alsa\
              -+rtmidi=alsa\
              -o dac\
              -d\
              --midi-device=hw:0,0\
              -B 512 -b 256 --sched\
              --midi-key-cps=5\
              --midi-velocity-amp=4\
               orc sco

**Orchestra:
	
sr = 44100
ksmps = 100
nchnls = 2

instr 1

      aPitch init p5 * .5

      asigl  oscil p4, aPitch, 1
      asigr  oscil p4, aPitch + 1, 1
      outs    asigl, asigr

endin


**Score:

f1 0 65536 10 1 .5 .25 .125
f2 3600