Mouse / Keyboard problems when installing RHEL on RHEV 3

Hello,

When installing a RHEL 6.2 guest on a virtual server (hosted on RHEV 3 Hypervisor) using the SPICE client, the mouse and keyboard will randomly stop working. I have tried restarting the guest, and managed to get further, even as far as the reboot and then as far as configuring kdump, but again after a few minutes the mouse freezes again and the keybaord is again unresponsive.

I have installed Windows 7 and XP guests on the same hosts and did not have this problem. With the RHEL guest I am using VirtIO.

Does anyone have any suggestions about this?