I810 driver and XVIDEO for HD movies fails

I'm seeing this error when I attempt to play a HD 720p (1280x720) movie 
in Xine:

X Error of failed request:  BadAlloc (insufficient resources for operation)
  Major opcode of failed request:  143 (XVideo)
  Minor opcode of failed request:  19 ()
  Serial number of failed request:  609
  Current serial number in output stream:  610

I'm using Xfree86 4.5.0 on a Commel LV-670 board.

lspci -v reports:

00:02.0 VGA compatible controller: Intel Corporation 
82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03) 
(prog-if 00 [VGA])
        Subsystem: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset 
Integrated Graphics Device
        Flags: bus master, fast devsel, latency 0, IRQ 5
        Memory at d0000000 (32-bit, prefetchable) [size=128M]
        Memory at dc200000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: [d0] Power Management version 1

00:02.0 Class 0300: 8086:2562 (rev 03)
        Subsystem: 8086:2562
        ...

I've added a VideoRAM 65536 to the device section but that not changed 
things.
I'm also trying to track down where in the code the BadAlloc is being 
return with
little success so far. I thought I had found that I should be in 
I810PutImage() in
i810_video.c but the xf86DrvMsg call I make does not appear in the log 
of the
servers stdout.

What is the reason that the BadAlloc is being returned? What can I do 
about it?
What more info can I provide?

Barry