It's not just with nvidia: I get the same problem if I vnc into a VM with desktop effects turned on running on VirtualBox 2.2 (the VM is running the Jaunty RC). It's fine if I turn desktop effects off.
(Just a note for reproducing this: to get desktop effects running on a VBox VM, you need to enable 3d in its settings and to install the VBox guest additions.)
It's not just with nvidia: I get the same problem if I vnc into a VM with desktop effects turned on running on VirtualBox 2.2 (the VM is running the Jaunty RC). It's fine if I turn desktop effects off.
(Just a note for reproducing this: to get desktop effects running on a VBox VM, you need to enable 3d in its settings and to install the VBox guest additions.)