iPhone 3GS unable to enable auto lock

[mutubun]

I'm using iPhone 3GS as mentioned above, currently ios 4.0.1 and the problem Im facing now is that. Even though I locked my phone manually, whenever there's a push notification coming in, the display just stays on that for the entire time and never lock again. Even after I set auto-lock to 1 minute, I even installed SBSettings Auto-Lock toggle to 'on' but its not helping at all.
This issue seems to be very irritating and it drains my battery through the night from 100% to 30% in "AFK" mode just because there is a push coming in. I didnt want to disable my push as it'll be troublesome having to turn off when I sleep and turn on when I wake up to prevent the phone from switching on by pushes.

Helps will be greatly appreciated !!

[Captinsmooth]

I had a similar issue I found out is was to do with having frash installed which caused flash to stay running in the background. Not sure if this is of any help to you.

[mutubun]

its not not useful in a way.. I'm stil figuring how to fix this.. will let u know when I did... meanwhile is there any help ? or everyone viewed this but didnt know how to solve as well..

[chicka]

Hey there.
I have an iPhone 4 with FW 4.1 jailbroken via redsn0w and I'm experiencing the same problem as mutubun.
The problem is I haven't even installed frash
Loooking for a solution desperatly - please help us!

Ok, found the solution:
s_infuliphone.com/showthread.php?t=47070
(remove the "_" from the link (why do you block sinfuliphone??)
It's called "Lockscreen Dim Delay". install it, go to your Lockinfo settings->lockscreen->scroll down-> set interval
hf