Addendum 1 - LED Video Display Scoreboards and Message Centers for the Veterans Memorial ColiseumDane County Public Works is taking professional cost proposals to provide and install a four sided centerhung LED video display, two fixed digit auxiliary LED display scoreboards, and two LED ribbon display message centers for the Veterans Memorial Coliseum in Madison, Wisconsin.Find the attached addendum to the previously issued RFP.Addendum 1 - There is a change in the date that the proposals will be due. Proposals will now be due at or before 2:00 PM, Thursday, July 21, 2011.