I get an error whenever I try to use ZBrush

I had recorded a movie and was loading it into ZBrush contained in my DELL Inspiron 1018 laptop with installed Memory (RAM ) of 1GB and a 32-bit Operating System when I got the following error. My mesh resolution is set in FSX to 19m.
I will appreciate any assistance.

MEMORY ERROR
Sorry, this action could not be completed successfully due to insufficient amount of system memory (RAM).
NOTE: Insufficient memory is a result of editing 3D mesh with higher polygon count than this system is capable of handling.
