Ronald Reagan says he spends many of his post-presidency days fighting writer's block and unpacking boxes in his new Beverly Hills home. "I never saw so many boxes in my life and they don't tell me on the outside what's in them," Reagan said Monday in an address at Pepperdine University in Malibu, Calif. "We're still looking for a heating pad that we know is in there." Reagan also is working on his memoirs but that project doesn't seem to be zipping along. "I also have hanging over me - the phrase I refer to is `monkey on my back' - I have a contract with the publisher for a book," Reagan told the 3,000 students at the school's weekly mandatory assembly. "I tell you, I sit looking at that blank page." Reagan was given a complementary surfboard by the student body, which boasts a champion surf team.