It's been installed on my main desktop since I had it assembled 7-8 months ago, no probs whatsoever. The only "issue" is that the refill light remains flickering, even though the level is constant and there are next to no air bubbles in the lines. Also, I've consistently checked up on the system thoroughly to see if anything leaks, and there are none. So no leaks and no bubbles, yet the refill light still blinks. Any ways to turn the light off? FYI, I've also topped off the level of coolant once the system had been running for awhile and some initial air bubbles had formed after the first time coolant was put into the system. It's a nuisance really, but there doesn't appear to be any overt threat to the system or anything like that. I have to wonder why the sensor keeps blinking if it shouldn't have any reason to. Any input on this?