virtualbox.org

Dear all

I just installed VB 4 on my pc. Both OS host & guest are Ubuntu 10.10 64 bit.
I am not able to restore any previous created snapshots because I get this error:
http://img97.imageshack.us/i/snapshoterror.png/
How can I solve this issue?

Thanks in advance
Merka

I forgot to give an important data... sorry.
I installed Oracle VM Virtualbox 4.0.0 r69151
Thanks