What the hell with dispostion?

[Loredweller]

Is it only me (and then why) or it happens to other too? After i upgraded to 1.2.0722 disposition things went messed. So, with 80 persomality an reputation 18 i come in some area i've already been and welcomed by local population (might be with a bit less personality) - or i get in the shop i've bribed merchant to 100 or near that. Then i see my best friends and admirers have become almost hostile, some has the disposition so low that some positive number apperars only after second successful bribe - or i even have to use the spell. Moreover, in most cases they ever do not have the smallest reason to hate me What's happening? Maybe some bytes has shanked from my HDD or CD?
TIA