itunes is transparent!

My itunes background has gone completely transparent, and also my internet explorer background flashes while I use it.

I've worked out that this is because my directx isn't working properly, and it says my ddraw.dll file is missing. I've tried reinstalling directx 3 times, but it still isn't working.

I read in another thread that I need to post my dxdiag report, so here it is. I've only copied the first bit tho because it's quite long, but if the rest would be helpful as well let me know!

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System Information
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Time of this report: 10/5/2008, 18:42:58
Machine name: DISCOVER-OVOH95
Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.070227-2254)
Language: English (Regional Setting: English)
System Manufacturer: AWARD_
System Model: AWRDACPI
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: Intel(R) Pentium(R) 4 CPU 2.53GHz
Memory: 512MB RAM
Page File: 338MB used, 860MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode
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DxDiag Notes
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DirectX Files Tab: The file ddraw.dll is missing! You should reinstall DirectX to get the latest version.
Display Tab 1: No problems found. Direct3D functionality not available. You should verify that the driver is a final version from the hardware manufacturer.
Sound Tab 1: No problems found.
Music Tab: No problems found.
Input Tab: No problems found.
Network Tab: No problems found.



If anyone knows how to fix this, that would be great! Thank you!