Hi All,
Thank you for your comments. We fully understand the inconvenience you might have been experienced during the Office Web Applications to stop rendering documents period.
The issue has been reported as solved, please refer to the following community thread:
http://community.office365.com/en-us/forums/176/t/75262.aspx?PageIndex=2
If the issue persists, please post it back here. I will further monitor this thread about the progress on your side.
Thanks,
Allen Qiu