template show:
Graph Template Items [edit: Unix - Load Average] Add  
 
Graph Item  Data Source  Graph Item Type  CF Type  Item Color  
Item # 1 (load_1min): 1 Minute Average AREA AVERAGE   EACC00    
Item # 2 (load_1min): Current:<HR> GPRINT LAST       
Item # 3 (load_5min): 5 Minute Average STACK AVERAGE   EA8F00    
Item # 4 (load_5min): Current:<HR> GPRINT LAST       
Item # 5 (load_15min): 15 Minute Average STACK AVERAGE   FF0000    
Item # 6 (load_15min): Current:<HR> GPRINT LAST       
Item # 7 (No Task):  LINE1 AVERAGE   000000    
 
(ugh, it is not formatted, better to look directly in cacti, it's the default only. just notice the 'AVERAGE' and 'LAST' shown, where the other creates with MAX and AVERAGE

The resulting is an error from rrd saying that the types does not match