I have the same ploblem with DREAMBOX 500HD
I find the similar files for DM500HD but i can't install them.
Please mates, can you help me? 
Everything is working fine now, and NovaCimena HD and NovaSport HD with the new drivers!!!!! where and how can we also get these "drivers"? hi the drivers are here:
http://dreamboxupdate.com/opendreambox/1…0-r0_dm8000.ipk
http://dreamboxupdate.com/opendreambox/1…0-r0_dm8000.ipk
http://dreamboxupdate.com/opendreambox/1…0-r0_dm8000.ipk
or install any image created later than 30/10/2010