I have an AMD Athlon FX 2 dual processor and am

Your CPU usually has 56ºC of temperature under load, so 44ºC is a normal temperature, still, make sure your case has enough airflow, it can really make wonders for your cpu.

Cheers

I believe normal temperatures range from 41 to 95. At least from this laptop that is running a dual processor:


http://shopping.msn.com/specs/toshiba-satellite-a215-s5802-15-4-inch-laptop-amd-athlon-64-x-2-dual-core-tk-57-processor-1024-mb/itemid913517877/?itemtext=itemname:toshiba-satellite-a215-s5802-15-4-inch-laptop-amd-athlon-64-x-2-dual-core-tk-57-processor-1024-mb

Also somebody else here had the same type of question:
http://answers.yahoo.com/question/index?qid=20090207210838AA922iE

From my experience as long as its not running over 100 then you'll be fine. If you have any doubts about your computer overheating you can always apply more compound to the heatsink and also buy a bigger one where the fan runs faster to keep things cooler inside of the case and always remember to have the side doors on as well.