
( No luck, zinga.
Same problem.
I think i had messed with template conditions and blocked the execution of code that works after we click login, as live login javascript or another php files. Can anyone tell which files and code is executed to direct us from guest to login state after we click login?
Make sure you clear all cookies after you change cookie settings.
Thanks aton my friend. Problem solved.

lol. i didnt checked the acp since a while and it had the error. Need to login for every click in acp while i browse through the tabs. main login problem is solved. this problem arised.
if i follow the mybb suggestions, it is not working. before, zinga said to keep cookiepath as "/" though i need to keep "/board/" and it worked fine with main login, but now the acp login problem arised.
So did you see the bit about making sure you clear all cookies in your browser? Like fully?
yep, i cleared the whole browser details including cookies, reseted the modem connection too..