Hyper Cache Version 2.6.5
This new version is an update for Windows systems. On Windows based hosting the PHP function filectime() cannot be used, so I changed it on filemtime().
The problem was discovered and solved by Sergey T.
Thank you Sergey!
My excuses for my bad english but it's the only way I have to communicate with you. Would you suggest
a correction? Leave a comment, thank you!

February 13, 2010 
I’ve reported the bug, but actually problem was solved by my colleague Ilia K., so thanks to him