hi, thanks for the reply.
yes, aware where the keyrings are, and i also backup to another local volume (thankfully). i will keep an eye out for this when it happens again i'll call tech support. it is a periodic corruption, no idea what would cause it as nothing in my config has changed, no new disks or file structure or anything. no new software. and i don't monkey with the keyrings. i do notice that when this happens (this may be the third or fourth time in the maybe what, ten years i've been using pgp) the desktop app will show no keys, the keyrings will have a size of zero kb. then i open a backup ring, import, and the keys are back but now greyed out (not verified), so i reverify, often at this point clicking a pgpdisk or attempting to decrypt a file will result in the alert 'private key not found'.. leaving me dead in the water. so i try restart, try reinstall pgp, reimport, etc. and at some point, i get the key to be recoginzed and things start to work again. but it doesn't seem step by step the same pattern each time, at least i can't remember if it is anyway.. and i see no cause for the corruption. the thing that really worries me is that period after reimport when the key is in the ring, and it has the same id (cause it's the same key) but pgp is still saying 'no secret key found', and the admin name in the admin field for pgpdisks is 'unknown'.. (albeit often with the proper key id). and then, somehow, i get it linked again, and things are ok. but this time it took two days and a good amount of worry. it's not an issue that's easily track down able... but it is real. spontaneous keyring zeroing. then pgps internal database doesn't want to relink the reimport of same key with previous volumes, etc.
i will try to document more realtime next time it happens. hopefully won't have to, :).
this is latest mac version (10.3.0 MP3 i think), and OS 10.8.5, fyi. thanks.