Command not found although in PATH

Question

In my sh or tcsh I can call netstat without problems. With Bash however, I get the message:

bash: netstat: command not found

The PATH variable is exactly the same for all shells:

PATH=/usr/lpp/Printsrv/bin:/usr/lpp/java/J6.0/bin:/EXEX/exec:/bin:/usr/sbin:/etc:/usr/lpp/perl/bin:.:/usr/lpp/ported/bin:.:.

Netstat is in the /bin directory and so should be included in the PATH...

Any ideas?

Thanks!