Shutdown problem, Dell 390

[Guest]

[mauriziopersi]

Hi everyone, I have a problem in shutdown with Endian Firewall Community 3.3.0 and 3.2.1, installed on a Dell 390 Core i5 (it is for a small business).
When I shutdown or I reboot the firewall from web interface or directly on console, PC freeze on last message with the freezed cursor, before it power off or reboot.
I tryed to install an old version of Endian, but the problem persist.
Time ago I installed same version (3.3.0 or 3.2.1) on an assembled pc and the problem does not appear.
Any suggestion?
Thank's

[Keruskerfuerst]

Can you check, if a Bios Update exists ?