[red_paw_prints]

I had a similar experience and posted here in the outdoor environment section. I later did some research on the cavies natural environment and found that they prefer to have easy access to cover from predators and feel safer during the low light conditions of dawn and dusk. Once I changed the conditions of the outdoor run, to simulate a more 'homelike' environment, they were happier. I actually used some old towels like another member suggested here. Good luck, I'm sure they will soon be enjoying their new run once you add in a few home comforts.