My Acer Aspire laptop is starting to overheat....other then turning it off, how should I deal with this?

clean the fan

yes your acer service center will help you clean your fan and mainboard inside

or try using your laptop in well air conditioned rooms only.
or put your laptop on well insulated ice bar

go to service center and ask them to do it. after that you can purchase a cooling pad too.

cooling pad is a big help regarding to your problem...i used acer and never encounter with the same problem

I too would recommend checking to see if there is any dust build up in the fan area and clean it regularly. Also, get a cooling fan. It helped out a lot more than I thought it would with mine.

Visit Acer's website for instructions.... cleaning the fan might solve the problem