Hi yall, i have 5x280x by sapphire, its hasn't been running for more than a month. I was using guiminer and pointing to coinshift but the cards can't connect anymore. So now i want to get them running again, best thing would probably be to get my rig on another profit switching multipool, im considering multipool.us at this point and ofcourse i'll need a miner that can handle the switching to different algorithms. Could you guys please link me to the best one out there for my needs?  It has to be a very stable miner and preferrably with gui, thx!!