Hi,
do you have any problems with paper orientation that is defined for drawing template? In my case it's changing but just for about 5-10 % of the drawings, so when it should be portrait it's landscape and vice versa..so if I first print landscape A3 and after that portrait A4 the setting for A4 could be landscape..(or not, it doesn't do that every time:-))
Could it be the printer (HP Laserjet 2100 TN) that somehow overrides those settings?