It is difficult to guess, what the problem can be. Usually Capture works perfect. But let me ask:
Which sample rate do you use (should be 44.1 or 48 kHz) and does Capture see the right Audio Device? Are you recording "Post EQ&Dyn"? If so, do you use "make-up gain" (the "Gain" in the compressor section of UC Surface)? Do other microphones work ok? Is it only this microphone, that has problems? Did you try to use this microphone on another input channel? Does it work there?
Is your firewire connection ok? Can you record other signals/microphones?
Sometimes phantom power can cause problems, if a connector is faulty (or not a Neutrik or equivalent...). Any acoustical input or physical move can result in signal clips, just because the connectors are not 100 % fitting. Check a "good" microphone cable and see, if the problem is still there - or gone...