Hi All. I'm kind of new to this forum thing so here goes - hopefully someone can help. I have had an Aladin Pro since 1990 and have logged well in excess of 500 dives with it, it has served me well and I love it. The problem is: the depth appears to be reading 8 - 9m shallow. I've made comparisons with other computers and have local knowledge to verify the inaccuracy. My question is - can my old Aladin be recalibrated and if so, how? I've replaced the battery (via an authorised Uwatec dealer) approximately 4 times over the years, and as recently as 18 months ago - so that should still be OK. I understand that my old computer is pretty much worth nothing, but I'd still like to save it. Any info could help. Thanks.