Display lags behind sound

Two Monitors a Problem?

I just got my new computer and I’m having “issues”
It’s a Pen 4 3.2 and was touted as the end-all for video and audio editing. I’m using the same Layla 24 sound card. The video card is an All-in-Wonder 9200 and I am running two monitors.
I have two 512 3200 memory for 1012 running as "duplex"
The display gets behind when I am editing in Ntrack 3.3. This never happened with my old Athlon 2000, one monitor and a simpler video card.
I know some of you are successfully running two monitors. Do you have a simular experience?
Any idea where to start and try to fix the error?