First check if Z drive is active then try again- if there is still no axiom, 
copy in the axiom.cfg file to the C drive

axiom CFG files are in here: \\ladco\shares\software\Axiom\Config Files\V8 
Copy/paste here
C:\Program Files (x86)\Bentley\MicroStation V8i (SELECTseries)\MicroStation\config\appl