I have Reflex 4130 from a friend of mine.and same problem RTC corrupted. I have replaced RTC battery, same happens. Crystal 32.768Khz is ok (K0S6E), Maxim DS1302S is Trickle-Charge Timekeeping Chip, I currently haven't to change.but I think is good. I presume problem was into backup battery, was empty and maxim send via I2C message to CPU about clock problem (possible CPU has protection regarding real time to keep time for update). Bonaire Shore Diving Made Easy Pdf Maker. But bad news is that CPU has changed a couple bytes somewhere (into BIOS??) Is anybody knows where and how to fix this problem?? Regards, cuby.