My MBAlu (SSD, 10.5.8) has now twice within a week been unable to show the login prompt after I open the lid. Waiting (5 mins) does not help, thus necessitating a hard shutdown (press power button 5 secs).
I have not yet done the normal PRAM & NVRAM resets' as (considering that the error is intermittent) It would take me some time to verify whether it's helped. I've had the machine for a year or so, and never before has it done anything like this. Thus I'm slightly worried.
MacBook5,1 - A1278, Mac OS X (10.5.8), MBAlu(Leo), IMac@i7 (SnowLeo), iBookG3(Tiger)