I have got an assembly with app. 178 parts and 1673 nuts, bolts, rings etc. The drawing .idw of the assembly takes about 12 minutes to open. The dealer said we need to make sure all the updates withing the assembly have to be done. Then the time to load will be 50 sec. We found some improvement 8 minutes but not the 50 sec. What could be the problem(s)? The system is a compaq W8000 dual XEON 2.2 nvidia quadro 4 500/550 xgl and 1 gig mem.