whats the diff between rtm and rc?? im running win 7 ult rc. with a gtx 280 1gb, 680i mobo w/ q6600 4gb crucial ram, oc'd to 3.4/ i get around 60 or so on main client pretty much at all times (except for a few times in a/v) with the other 4 on secondary monitor cut off at 20. at times i do get quite a bit of drop on main screen around 28-35fps but i fig that was pretty good. settings tanked on 4 slaves, and around mid on main.