Did the normal update, from 68 to 78 yesterday, once I opened under 78, many of the NAMES in my address book were lost, just a comma in place of the name, but the email detail IS still there. I still have v68 running on my laptop, copied my 78 Profile back to the laptop, replaced all files/folders from my 78 profile into the new profile I created on the laptop, but when I tried to open TBird on the laptop using that replaced file info, it refused, said it's incompatible to go from 78 back to 68. Is there any way to get my 78 profile running on a 68 install so I could check to see if the v 78 is just not able to read the names in my address book (so I could recover the address book fully and export it for importing into v78), or if the new install of 78 actually has corrupted my address book information and it's lost now? Alternatively, is there a way to repair my address book in 78 that would bring back the lost names?

Thanks for any help Chas