PSR showing - in ps command

UNIX Solaris
1

Hello,

running into a bind when im inputting the following command:

bash-3.00$ ps -p 874 -L -o pid,psr,pcpu
  PID PSR %CPU
  874   -  0.0
  874   -  0.2
  874   -  0.0
  874   -  1.1
  874   -  0.2

Now when i run it on my other SUN machine i get this:

bash-3.00$ ps -p 3874 -L -o pid,psr,pcpu
  PID PSR %CPU
 3874   2  0.0
 3874   1  0.1
 3874   -  0.0
 3874   2  0.0
 3874   2  0.2
 3874   4  0.2
 3874   5  0.1
 3874   6  0.0
 3874   7  0.2
 3874   2  0.0

So i know it works on that machine but will not work on the other machine. Please help!