Very very strange ...
I have a private server where php 5.2.17 is running.
X 2.5.5 and 2.5.6 are perfectly running www.virtualmedcup.itwww.vmrt.euwww.vskitalia.com
today I installed x 2.5.7 and then 2.5.6 in a server where php 5.2.14 is runnng.
-website regularly installed.
-home page online
-administration panel available
Blank page on view account and modify account ; same for added modules.
from admin panel I cannot reach several pages ( like blocks and groups ) and I cannot reach preferences pages.
I opened modules/system/admin.php and I see just -blocks - groups - modules - preferences - templates , seems not active; even if I can handle modules ( install, uninstall, update ..)
Any idea ???