We would like to inform you that the SIMnet team has successfully corrected a regional issue with the SIMbook assignments. Between 1:30AM CST-11:00AM CST on 1/17/2014, your students may have had a blank blue screen on some of the SIMbook pages and/or the Let Me Try button may have been grayed out and unavailable. The issue reoccurred between 3:00AM CST on 1/19/2014 and 5:00AM CST on 1/20/2014.