I'm trying to get a QNX 7 system up and running and I'm having problems that I can only assume are PAM related (my last 
O/S build was 6.3 before PAM existed).

I've got everything installed and booting just fine but all the commands now controlled by PAM (login, passwd, su) don't
 work (everything else does).

If for example I type 'passwd root' I get 'passwd: system error' (I get similar messages with su/login).

I've checked *everything* here (past 2 days on just this issue) in the troubleshooting section and it's all set 
accordingly.
http://www.qnx.com/developers/docs/7.0.0/index.html#com.qnx.doc.security.dev_guide/topic/authctrl.html

Yet I am unable to get those commands to work. Which makes me think it's something else not right (a library). 

Can anyone tell me what I might be doing wrong or can someone peek in the code and see when those errors are generated. 
QNX could really use a 'checkPam' utility that validates PAM and prints out anything that's not correct.

TIA,

Tim