I can confirm this bug with 12.04 Beta 64 Bit.
Geforce GT240 with nvidia-current 295.33-0ubuntu1
Uninstalling libvdpau1 resolves this issue for me.
I can confirm this bug with 12.04 Beta 64 Bit.
Geforce GT240 with nvidia-current 295.33-0ubuntu1
Uninstalling libvdpau1 resolves this issue for me.