Has anyone ever figured out the grading system, for real? I have a Sim in univeristy and took his last 4 classes to graduate... and he failed two of them. Despite going to every class, doing all the homework, and the finals/paper/presentation. Apparently there is a Skill requirement for classes... does anyone actually know how Skill-building is calculated in? Has anyone figured it out or are we all still guessing? I'm so pissed I spent all his Sim hours doing coursework and he still failed! I mean what the F? (pun intended)