dump/restore problem

Hello,

I have a dump created with pg_dump ver 7.4.1 from a postgres 7.4 database,
with encoding SQL_ASCII.
I'm trying to import this dump in a 7.4.1 postgres database with encoding
UNICODE, but I'm getting some errors:

psql:dump.sql:1277: ERROR: invalid memory alloc request size
1073741824
psql:dump.sql:3490: ERROR: invalid byte sequence for encoding
"UNICODE": 0xce20
CONTEXT: COPY products, line 1, column ldesc: "<li>capacitate de spalare
5 kg^M
<li>viteza de centrifugare 800 rpm^M
<li>18 programe variate de spala..."
psql:dump.sql:5414: ERROR: invalid memory alloc request size
1073741824
psql:dump.sql:5577: ERROR: invalid byte sequence for encoding
"UNICODE": 0xd650
CONTEXT: COPY feedback, line 26, column comments: "Stimata Doamna/Domn,^M
^M
As dori sa achizitionez un aparat de tuns Philishave HQC888, pe care, cu
toa..."

What can I do ?

Thanks.