anyone had any problems with the pump on this kit? the first one i bought, the pump stoped pumping for no reason. it would work then stop working for no visible reason.. so i took it back and got a replacement.. but it did the same thing again.. the first time i had an extra 3 feet or so of hose that i ended up taking out.. but that shouldnt have an impact on it right? (i only had boths pumps a total of 3 months mind you..) so i cant figure out what im doing wrong.. i really like this system because i looped my vid card into it and the system never gets hotter than 40C.. usually sits around 28-32C... so anyone had any problems like this before?? does anyone have and suggestions for a replacement pump? the system is already piped adn i really dont want to redo it again..