Solidarity leader Lech Walesa says he's optimistic large-scale discussions with the government will begin soon on the future of his banned trade union movement.

The comment came after Walesa met for more than four hours Thursday with Interior Minister Czeslaw Kiszcak, his second meeting with Polish authorities in six years. More talks are scheduled Friday.During Thursday's meeting, the two agreed to continue working toward an early start of talks on Poland's future with broader participation.

"The atmosphere is encouraging," a smiling Walesa told reporters after he returned to the church complex in Warsaw where he is staying. But the chairman of the banned union stressed difficult problems remained.