The batteries in my trusty 11C finally died a few weeks ago, and I replaced them with silver oxide (303) watch batteries from Wal-Mart. After installing them, the display flashes 0.0000. The * in the lower left corner also flashes. The keys are unresponsive. Removing and replacing the batteries doesn't help. What am I doing wrong?
Thanks,
Danny Kight kightdm@carol.net