Where's Otto's bucket o' fungus tek?

im a newby at the funny fungus game so i purchased the easiest machine i could find which was the myco-garden machin. I am so dissapointed in it! the dome does'nt seal on it so its extremely difficult to maintain humidity or temp! i have a few B cakes ready to fruit but cant get them to start pinning. this fruiting chamber sucks a fatty, somebody, anybody, HELP!!!!!