psql error

[Charset iso-8859-1 unsupported, filtering to ASCII...]

Hi,

My ISP has recently installed PostgreSQL and I started using it a few days
ago. When issuing a SELECT command from inside 'psql' I get the following
behaviour:

When just a few rows are returned, then the output is shown normally on the
screen. When on the contrary my SELECT returns many rows, the following
message is output to the screen instead of the excpected output:

more: not found

You have PAGER environment variable defined to 'more', but do not have
'more' defined in your path.

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