to set your page file properly go here....
Right click "my computer"
click advanced tab.
click settings under performance
hit the advanced tab again
under virtual memory, click change
select "custom size"
and input the size of your memory under "initial" and "maximum"
if you have 2G of memory, put in 2048 for both fields, and click SET
i would advise defragmenting your harddrive when it boots, then restart again..you should be good to go..