Problem with FileManager and Album : no module content

[Mich-adg]

Hi,

i installed cmsms 1.4 with FileManager 0.4.1 and Album 0.9.3 online

I get two stranges bugs :
1 - when i click on a FManager directory, a blank page appears (menu and module title shows) : i can't see the content of the directory
2 - when adding an album : same problem, just the title of the module and nothing else

It seems to occurs too when i save modifications, for example when modifying preferences in TinyMce, a blank page appears (without confirmation message of the saving action, but the action is saved).

Any ideas ?

[Dr.CSS]

What kind of server, what is memory amount/limit, any errors when install or warnings, permissions on folders, etc....