Noah 3988 Case problems

Last July I built a kit from Mini-ITX.com and it has proved to be a very nice box: quite, small, powerful enough for a NAS, but it can also act as a reasonable workstation (but not gaming machine!)

Last night however, the pretty blue power button disappeared inside the case - an inspection showed that the plastic "spring" element had broken. To make matters worse the actual power button is not directly behind the hole in the front panel, so temporary fixes (like poking in a pencil!) won't work.

I can see this being a very irritating problem to fix - gluing plastic never works for long. So if anyone has any insights into how to approach this, please let me know!