Dear Ghosh, I do not think that the warning is related to your compilation option. This issue is covered in the FAC of Wien2k website: http://www.wien2k.at/reg_user/faq/
Try first to decrease R0 in the CASE.struct file. Hope this help Pascal * Anglais - d?tect? * Anglais * Fran?ais * Anglais * Fran?ais <javascript:void(0);>