In 1989, Hawaii introduced the 2^(nd) iteration of the McMaster PBL curriculum. We compare the weekly schedule of both schools and show that despite largely similar block structures, small differences crept into the Hawaii program. This "curricular drift" resulted in a largely student-centered McMaster PBL curriculum that became more teacher-centeredness. We briefly summarize the failure of PBL to gain a foothold in Asia. Finally, we look to Hofstede's dimensions of culture and conclude that Asia must begin to re-shape PBL in its own cultural image and that "curricular drift" is really an expression of the search for that new shape.