Taskleiste friert ständig ein

Hallo!

Mein Problem ist, dass meine Taskleiste ständig einfriert, sobald ich eine Anwendung im Vollbildmodus starte.
Mit [ALT]+[TAB] kann ich die Taskleiste zwar aktualisieren, aber das nervt doch ziemlich.

Systeminformationen (ausgelesen mit dxdiag):

Code:

------------------
System Information
------------------
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3, v.3264 (2600.xpsp.071130-1427)
Language: German (Regional Setting: German)
System Manufacturer: ABIT
System Model: IP-95
BIOS: Default System BIOS
Processor: Intel(R) Pentium(R) D CPU 2.66GHz (2 CPUs)
Memory: 2048MB RAM
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DxDiag Version: 5.03.2600.3264 32bit Unicode
---------------
Display Devices
---------------
Card name: NVIDIA GeForce 8600 GT
Manufacturer: NVIDIA
Chip type: GeForce 8600 GT
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0402&SUBSYS_00000000&REV_A1
Display Memory: 1024.0 MB
Current Mode: 1024 x 768 (32 bit) (85Hz)
Monitor: Plug und Play-Monitor
Monitor Max Res: 1600,1200
Driver Name: nv4_disp.dll
Driver Version: 6.14.0011.7824 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 10/7/2008 13:33:00, 6058112 bytes
-------------
Sound Devices
-------------
Description: USB AUDIO
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: USB\Vid_1130&Pid_f211&Rev_010;&MI_00
Manufacturer ID: 65535
Product ID: 65535
Type: WDM
Driver Name: usbaudio.sys
Driver Version: 5.01.2600.3264 (English)
Driver Attributes: Final Retail
WHQL Logo'd: Yes
Date and Size: 11/30/2007 16:30:58, 60032 bytes
Description: Realtek AC97 Audio
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: PCI\VEN_1106&DEV_3059&SUBSYS_1422147B&REV_60
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: ALCXWDM.SYS
Driver Version: 5.10.0000.6170 (English)
Driver Attributes: Final Retail
WHQL Logo'd: Yes
Date and Size: 9/20/2006 08:01:12, 4019072 bytes
---------------------
Sound Capture Devices
---------------------
Description: USB AUDIO
Default Sound Capture: Yes
Default Voice Capture: No
Driver Name: usbaudio.sys
Driver Version: 5.01.2600.3264 (English)
Driver Attributes: Final Retail
Date and Size: 11/30/2007 16:30:58, 60032 bytes
Cap Flags: 0x41
Format Flags: 0x0
Description: Realtek AC97 Audio
Default Sound Capture: No
Default Voice Capture: Yes
Driver Name: ALCXWDM.SYS
Driver Version: 5.10.0000.6170 (English)
Driver Attributes: Final Retail
Date and Size: 9/20/2006 08:01:12, 4019072 bytes
Cap Flags: 0x41
Format Flags: 0xFFF
-------------------
DirectInput Devices
-------------------
Device Name: Maus
Attached: 1
Controller ID: n/a
Vendor/Product ID: n/a
FF Driver: n/a
Device Name: Tastatur
Attached: 1
Controller ID: n/a
Vendor/Product ID: n/a
FF Driver: n/a
Device Name: G15 Gaming Keyboard
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC226
FF Driver: n/a
Device Name: G15 Gaming Keyboard
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC226
FF Driver: n/a
Device Name: G15 GamePanel LCD
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC227
FF Driver: n/a
Device Name: USB Receiver
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC51A
FF Driver: n/a
Device Name: USB Receiver
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC51A
FF Driver: n/a
Device Name: USB Receiver
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC51A
FF Driver: n/a
Device Name: Wireless Keyboard & Mouse
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x062A, 0x0102
FF Driver: n/a
Device Name: Wireless Keyboard & Mouse
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x062A, 0x0102
FF Driver: n/a
Device Name: Wireless Keyboard & Mouse
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x062A, 0x0102
FF Driver: n/a
Device Name: Wireless Keyboard & Mouse
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x062A, 0x0102
FF Driver: n/a
Device Name: USB
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x1130, 0xF211
FF Driver: n/a
Device Name: USB
Attached: 1
Controller ID: 0x0
Vendor/Product ID: 0x1130, 0xF211
FF Driver: n/a
Poll w/ Interrupt: No
Registry: OK

Hat jemand einen Rat für mich?

MfG

Andreas