Couple of ideas... First, have you tried making a new user account and then seeing if the problems follow to the new account?
Second, programs like Onyx should be left to the professionals. They are intended to be used in very targeted and specific ways, not some kind of shotgun panacea. You are more likely to compound your problems using programs like that, compared to solving them. When you reach a level of technical competence where you understand what each and every setting does, as well as the risk/reward breakdown for that option, then you can consider using such a program, though by that point you probably will find there's little need.
MBP 2010 13" with Snow Leopard (10.6.
, automatic updates on.
Since a couple of weeks the login screen from sleep (sleep only, not after restart) repeats the password request before allowing login. The first 'failed' login has to be with the correct password, if I try to skip the 'failed' login by just entering a few random characters, I still have to enter the correct password twice. Somewhat tiring but NBD.
Just now I entered the password twice (the usual 'fail' first), then the login succeeded but the computer went back to sleep. I had to press a key to reawaken it and enter the password a third time to login.
This is a worrying trend - I have seen other posts complaining of complete login failure. Besides it is a nuisance to have to repeatedly enter the same password.
I have tried OnyX and let it give the computer a standard check and clean-up, made no difference (thankfully no new problems either).
Anybody got any ideas? If not, should I consider a PC-style complete re-format and re-installation if the login problem gets too bad?
I'm not worried about being backed up (well that'll tempt fate), I have triple redundancy with SuperDuper, Time Machine and CrashPlan on separate external drives and in the cloud.
Thanks!

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