[fox46]

Solidworks is a very stable program and handles multiple files quite well however, with a quick machine you are better off saving, closing and reopening your files. As well as an increase in performance (whether you notice it or not) it will be easier on your hardware. Computers, laptops especially, are rarely designed to run at 100% performance for extended periods of time. The cooling capacity just isn't there. Having a watercooled CPU doesn't mean anything because you also have to cool the RAM, HD, Video Card etc etc. For my personal use I always buy laptops because I need the portability. The last three that I have had have all died from heat induced hardware failure. (last week I picked up an ASUS G74 so we'll see if it does any better than the others) Aside from the high end gaming machines, few computers are made to handle these stresses. When you are looking for a new machine to run files like that, the key is big case and plenty of air flow.