SHARON DONEGAN, USA, can't find the ps viewer program

[Sharon or Dan Donegan <planetfolk@xxxxxxxxx>]

Received, viewed and printed out faxes last week.  This week on 
receiving a fax I got the message "can't find the ps viewer program- 
please check your installation and the path environmental variable"

Checked to see if I could view or print out the old faxes.  The printer 
spewed out a blank sheet of paper.

Tried to searching the net, posted in Ubunutu (nothing) and some fixes 
seem close but would rather ask you folks what to do.

Any help would be appreciated.  Thanks!

Sharon