I thought I would post this because very likely some other user are experiencing this:
Afte upgrading a guest system from mandriva 2010.2 or older to cooker or Mageia, the system becomes very unresponsive after a random period or time ( just after boot up to 3 hours). Upgrading the virtualbox on the host to 4.0.10 solved this problem. I haven't been seen it anymore for two days. -- Thomas
