character mode report

[joereena]

Hi,
I am developing a simple report in character mode. After all the character mode settings are done, I'm creating the data model and layout. But sometimes I get the following error.

REP-1352 The font specified for this report can not be found for the character set specified by NLS_LANG

Sometimes I get this error when I adjust the margins.

If I run the report in bit map mode then I don't get this error.

Any solution??

Please help..

Thanks in advance.