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i had a similar problem when the wire linking my printer to the pc had a bad connection, a new wire has sorted this out for good!

No simulator is identical to the real thing, but realism varies among different simulators, and since simulators are not always used to simulate every aspect of flight, most of them are good at certain parts of the simulation, and not very good at others.

The Google flight simulator is at the low end of the scale in terms of realism.

You can get vastly better realism from PC programs that simulate flight specifically, such as Microsoft Flight Simulator or X-Plane. They provide a good general simulation of flight, especially if you have a joystick and other controls attached to your computer. Because the computer doesn't move and has only a single screen (instead of wide windows), PC-based simulations are more accurate for flight by instruments than they are for visual flight. Various add-ons for these simulators are available that greatly increase accuracy and realism, and they can also be used on networks so that you can fly among other "pilots" with air traffic "controllers."

Beyond that, the price goes up, but the accuracy improves. Some dedicated simulators for the PC simulate specific things, such as instrument flight only, and some of them, in specific configurations and with an instructor present, are certified by aviation authorities and the time spent on them can be logged for the purpose of obtaining a license (although you still need lots of time in a real plane to get the license). Programs like X-Plane are not expensive, but when you get into certified simulators, you add one or more zeros to the price.

Beyond that, you get into purpose-built simulators that simulate many of the physical aspects of flying. At the top of the scale are full-motion simulators that exactly duplicate the behavior of specific, real aircraft. They move like the real thing, and they look and behave just like the real thing (from inside the cockpit). They are certified and the time spent on them can be officially logged. They are very expensive ($15-$30 million), and time on them is charged by the hour. They are used mostly by airline pilots for practice and certification and other necessary purposes (airline pilots must constantly remain current on various procedures that they are unlikely to ever encounter in real life). Despite the cost, using simulators for commercial pilots is still cheaper than handing them a real airliner just for practice.

If you like flying on the Google simulator, try a PC-based simulation program like Microsoft Flight Simulator. If you really like that, there's a good chance that you might enjoy flying for real, so you might consider going for a pilot's license (or even a flying career).

i too also have a mac, but i run most of my 3d modeling sotfware off of parallel's desktop–its like having a pc on your mac. most 3d software is only compatable with windows.

if you want to just design cars, i suggest trying out alias/maya, it is what GM, Toyota, Nissan, and etc. use. if you are a student, you can get the software for a reasonable price. however, this program has an intimidating interface and is fairly difficult. you basically create your designs out of knitted surfaces and eventually you will be able to get realistic renderings and results.

rhino is another good software to use, mostly used by architects, but you can model a variety of products—cars to furniture.

solidworks is my personal favorite, however, making cars can be a little difficult. i have designed motorcycles and a variety of consumer products using this software, however it can be very time consuming. a cool thing about solidworks is that it can make technical drawings based off of your 3d model.

basically, most 3d modelling software can be difficult for beginners, but eventually you will learn, and it will be easy. this is the case whether you teach yourself (youtube is a surprising good reference) or take professional training.

—good luck