Deer Park preferences window corrupted

[Sean]

On an up to date -development system the preferences window of Deer Park
alpha 2 is unusable.  While some of the text can just barely be read, most
of it is unreadable.  Only the 6 tabs along the top of the window can be
read, but even they are broken up and hard to read.

Most of the Edit->Preferences window is see-through (ie. as you move the
window around you actually see the contents of the desktop, or window
below it).  If a screen shot would help, i'd be happy to post one.

Nobody else seems to mention this problem in Bugzilla or in the archives
so i'm wondering if this isn't actually a problem with the X.org server?  
Bugzilla 155213 does mention a problem with i865 video, but i'm not sure
it's related.

Perhaps the Deer Park preferences window is supposed to be translucent and
that feature is just not working on X.org for i865 based video?   Dmesg
does seem to show the kernel complaining a bit, at least about the
framebuffer:

Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 865 Chipset.
agpgart: Detected 16252K stolen memory.
agpgart: AGP aperture is 128M @ 0xf0000000

intelfb: Framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G
chipsets
intelfb: Version 0.9.2
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 193
intelfb: 00:02.0: Intel(R) 865G, aperture size 128MB, stolen memory 16252kB
intelfb: Mode is interlaced.
intelfb: Initial video mode is 1024x768-32 at 70.
Console: switching to colour frame buffer device 128x48

intelfb: ring buffer : space: 63368 wanted 65472
intelfb: lockup - turning off hardware acceleration
[drm] Initialized drm 1.0.0 20040925
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 193
[drm] Initialized i915 1.1.0 20040405 on minor 0:
mtrr: base(0xf0020000) is not aligned on a size(0x800000) boundary

Looking for someone to give me a nudge in the right direction as to how to
tackle this problem.

Thanks,
Sean