3GB of RAM installed (2GB available)
From your posting it seems that you might have the graphics card sharing the RAM of your laptop. Please see if you have a dedicated graphics card or the memory of your graphics card is set to share with your RAM. For a graphic card that is sharing the memory with RAM you can most probably still adjust it from the Bios of your laptop.
You need to look at the manual of your laptop which was supplied when you purchased it to see if it shares or to change the amount of RAM it will use.
Alternatively you can try Click and enter details of your laptop for more information. I would also recommend that you download and install all latest drivers/firmware from this site also.