Firt, having F@Hcore_78 jump between 48 and 50 means that you can add another instance of F@H to the second core.
If F@H is at 50% and CPU is at 100% I am curious what else you are running to take up the extra CPU cycles. What other numbers in Task Manager are above 0?
First create a directory called F@H1 and a directory called F@H2. I would put the new directories in the root directory or under Program Files. When you download, download twice, and save the file first into F@H1 and then into F@H2.
Do not save to the desktop. If you run it from there it will create headaches eventually.
Then enter into each directory, run the F@H5.04. Directions are as before. Accept the default if you are not sure of what to do, EXCEPT one must be machine=1 and the other must be machine=2.
I have my f@h folders 1&2. When I enter the F@H1 directory, it immediately tries to load me another wu before I can type in the information "SET ADVANCED METHOD'S" enter "y".
Do not save to the desktop. If you run it from there it will create headaches eventually.
I'll have to get rid of that then. oops.