chrism

After i flashed my dm500 with the OpenPLi-beta-dm500-maxvar-old-framebuffer-20120229-245 i notice a very strange behaviour of the dhcp.
When i restarted the receiver i got no ip although the dhcp was selected. I had to put manually the ip, save it and then to go back to dhcp. After this i must restart the dm to connect to the network.
Last night i switched off the receiver and when i switched it on this morning the ip has gone.
With my previous image i had no problem. I have another 2 dm at home and all are working fine with dhcp so I think this must be a bug.
And something else, is there a way to show the menu with one press of the ok button?