Screenshot file size is 0

[jrh18]

Every screenshot I try to take with the print screen key has a file size of 0. I am running 1.0b1 latest I know of. I am using HDMI for video, and have HDMI ignore cec unit and HDMI ignore cec set to yes. I I get the same results in the xbian home directory as well as an external hard drive.

Anyone think of what to point me to in order to resolve this? I am trying to take configuration screen shots for an rpi car media center.