Problems on deploy wml application on real mobile devices.

Last weekend, I tested my application on openwave 6.2.2 simulator(localserver), it work perfectly but while i test it today again, it's not. But the funny things is, it worked on winwap32. Because, I test it last time by using winwap32, it not working. But now is opposite. No idea. And I'm sure the codin is OK.

So, i try to run the application on real phone to see what is happening. I just uploaded my entire wml application on the window server 2003(can work on GPRS). SIgh....It couldn't work on samsung X100 mobile phone, Winwap32, Openwave 6.2.2 and O2 palm. I saw nothing on the page. wanna cry now....but no tears.

I'm getting crazy, it's not stable at all. Sometimes work, sometimes doesn't. Does anyone here can help me to solve this problem? What is the problem actually?

Thanks in advanced!!

A blank page usually means that the output was not valid WML.

Try validating it here .

I tried the validation. It said Validate WML. What does it means??My application is using validate WML? But how come i still unable to view it on real phone.

The problem now is not only unable to view the page. It work on WINWAP 32 but not others emulator. How to mke sure a standard WML file able to view on all emulator.I did using yospace smart phone emulator6, NMIT-6230i, Wap proof. All of these don't support my application.
Please help!

What file extension are using for your wap site?
Are you sending the correct header information so that the emulator actually knows that it is trying to view a wml site?

When you say you can't view pages, what do you see?
Can you check your server logs for any errors?
Have you tried on a real phone - does the phone support the version of wml you have written your application in?

HI...I've solved the problem by change the header to wml11. It is as what you said the file header problem. Thanks anyway.

But, I meet another problems. My application using session management, so when user login, session enabled to the application, user can view the menu, the content, everything, and click logout, session clear. WHen user click back after logout, the page display "session time-out, please login again".

It work perfectly on emulator but not real mobile devices. When the user logout and click back on real mobile devices, the previous content is viewable and i can see that session is not working through out the application. It shouldn't be like this. Please help!!
Thanks in advanced.

The problem is solved.

In the interest of others, you could post your solution