Is there a free RAM requirement
 

I have a 58 meg excel file with a macro that executes fine with my PC. My PC
has 2 G of total RAM and 1.1 free when the file is open. When someone else
run this file on their PC with only 1 G of RAM the macro steps through the
lines of code but does not do anything (when the select sheet statements
execute Excel does not change).

Is there a min free RAM requirement for a macro to execute correctly?