4.04 Problems

[klrobison]

I did a show last night and what a bummer!!!!!!!!!!!!!!!!!
I just upgraded to 4.04 from 3.316.
Approx. 50% of the song lyrics were out of phase with the music. Very Embarrassing!!!! Also, the buttons were very slow to react!!! very slow!!!
This morning I have been troubleshooting the problem and have found that if I start my PC everything runs smoothly, but once i activate "dual screens" the problem occurs!
I have reiterated this info to tech support and will see what they say.