[Chimera-users] Visualising PDB files from AMBER

Hi everybody, I've generated a average pdb structure from an AMBER trajectory. The structure contains one water molecule (named: WAT). I fail to visualise it in Chimera despite the fact that I can select it. I'm using Chimera 1.5.2 on OSX 10.6.7 Any ideas explaining this behaviour? I'm attaching the relevant file. Thank you in advance for your help Best regards George