Please, avoid spreading your posts like a virus - you have already posted your issue in one topic, no need to infect all the others.
I understand that you have a problem and that it troubles you, but doing this will not help you much.
If you must draw attention to your post, simply place a link to the original post/topic, instead.
And no, I have no idea what is the problem in your setup, could be related to php or some other thing in your system, really hard to tell as I have never had it and cannot reproduce it on my end. Probably this is the reason you still have no response from anyone else.
Maybe you have problem with sessions, your folder write permissions etc. Use forum search and try solutions from older topics.