DICE Silverline Pro in 2004/2005 Prius

Hi there, I have a minor but irritating problem with my Dice Silverline Pro going into a 2005 Prius with JBL sound syste. When the system is playing MP3s, the title, artist, etc scroll on the MFD but the display flashes with every digit scroll.

I have set the Dice to Scroll (long), Scroll (short) Static (long) Static (short) but these setting don't change anything on the 2005 display. I have the DICE set on "Smart" control for the iPod (as opposed to "Dice control" or "Steering Wheel" control) which is supposed to allow both Dice and Steering Wheel control.

Has anybody else had this problem with the Silveline Pro on their 2004/2005 JBL system?

Thanks,