virtuemart backend - Orders status page redirect problem

[Giladd]

I have a very strange and irritating problem in virtuemart backend. On the Orders page when I try to filter orders status the page is redirect to the Joomla admin page (URL is domain name/administrator/index.php). The problem is happening for any order status and also for the search filed for the order "Filter Name" . The problem is maintained also after upgrading to version 2.6.0a. I try to debag it and I enable "debugging messages" on virtuemart – no error or worming massages here. I also disable all 3rd party extensions with no luck.

Any idea how to fix this problem ?

Thank you.

[Giladd]

Problem Solved by reduce the sort number from 250 to 100. Probably same time out problem....

[Milbo]

It is just the RAM. I added a max message to avoid that, but it helps not always. Something becomes too big and kicks you out.