I am trying to run Prime95, and was wanting to run two instances of it for dual core. I can't get a second one to come up for some reason tho. Not sure if there is a trick to it or something.
it's not hard, you just have to change the affinity in the advanced options and change the file name a little (so you have two instances, no big deal.
you also have to set it up to spilt the ram usage or you will get errors immediately.