Unicode characters under WinXp

Dear Developers,

Thanks for your works with this great tool (pgadmin).

I found a bug under WinXp in 1.4.2 (Mar 6 2006) version:
When i make a select in the 'Query tool' e.g.:   select * from table where model like 'Ös%'   The result is ok.
When i make a filter in the right click menu of 'table' with 'View 
filtered data' e.g.:   model like 'Ös%'   The result is an error message box with the following:      An error has
occured:
      ERROR: invalid UTF-8 byte sequence detected near byte 0xd6

Best Regards,   Ferenc