I'm loading 800 freq into older model 197. I loaded the 800 freq for IN and it would stop on freq but no sound. So I check for the rebanding firm ware and up dated from ver 1.6 to ver 1.7 and to ver 1.8. after doing the upgrade when go to check anything I get heap error 22CF21 : 22D6 or 22CF1F : 22D6 and it won't stop or any of my freq now. So I went back and reset it to the factory default settings. Same heap error's. It will stop on old FM Medical Freq. that was programed before. Please any help apprec.