Hi Fran,
my old dell laptop ( 3.06 ghz 512mb memory)
which is miraculously working again after I pulled it apart & put it back together a few times. I can actually get it down to
1.45 ms without distortion using ASIO4All & Forte & Soundfonts.

Unfortunately I ordered a new one after Dell offered me a $1,000AUD extended warranty to fix the old one.
With nothing to lose, I just kept pulling it apart & putting it back together in the manner the Dell Tech had gone thru with me over the phone. Must have done something right as all of a sudden , up popped the screen after having been dead for about 6 weeks.

The new dells a core duo , but only 1.66 ghz. They changed all the laptop processors.

Can't get it below 10ms without distortion.
Strangely, in forte, it works better with the onboard driver than with ASIO4ALL.

I'm wondering if the onboard Audigy soundfont software slows things down.

For midifiles I wouldn't notice the difference, but I'm a bit hesitant about buying an expensive sampled piano for realtime use.
I'm in a catch 22 , the old laptop with the low latency hasn't got enough memory, the new one with 2 gigs, may not be fast enough. haa haa
best wishes
Rikki