Asterisk crash

Hello all. I am experimenting with VoIP and Asterisk on my 64-bit SuSE 10. Currently, when I try to start Asterisk, I get errors involving an udnefined symbol 'ast_moh_stop': ...........Mar 12 00:02:38 WARNING[18380]: loader.c:258 ast_load_resource: /usr/lib/asterisk/modules/app_dial.so: undefined symbol: ast_moh_stop Mar 12 00:02:38 WARNING[18380]: loader.c:440 load_modules: Loading module app_dial.so failed! Does anybody have an explanation and/or cure? TIA CF -- Running 64-bit Linux on AMD64