While running Big Picture on Ubuntu 12.04, some of the text on buttons are not visible, and textures such as glows and shadows come in and out of view. Some background images also disappear while moving the cursor.

My system information

Processor Information:
Vendor: GenuineIntel
Speed: 1100 Mhz
2 logical processors
2 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported

Network Information:
Network Speed:

Operating System Version:
Ubuntu 12.04 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 3.4.0
X Server vendor: The X.Org Foundation
X Server release: 11103000

Video Card:
Driver: Tungsten Graphics, Inc Mesa DRI Intel(R) Sandybridge Mobile x86/MMX/SSE2

Driver Version:  3.0 Mesa 8.0.4
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID:  0x8086
DeviceID:  0x106
Number of Monitors:  1
Number of Logical Video Cards:  1
Primary Display Resolution:  1366 x 768
Desktop Resolution: 1366 x 768
Primary Display Size: 10.08" x 5.67"  (11.54" diag)
                                        25.6cm x 14.4cm  (29.3cm diag)
Primary VRAM Not Detected

Sound card:
Audio device: Intel PantherPoint HDMI

Memory:
RAM: 1873 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 296648 Mb
Largest Free Hard Disk Block: 273503 Mb

Installed software:

Recent Failure Reports: