Rundll error at "Game Controllers" control panel

Hi,
I recently bought an old gameport flight control system off eBay for use in flight sims. When I click on the "Add..." button at the game controllers control panel, I get one of those Send Error Report messages. Since I've only had to deal with plug&play USB controllers in the past, I've never had to manually add a controller so I don't know how long this problem has existed on my system. I've tried expanding rundll32 from the WinXP CD into my system32 folder, and I've taken all the steps in the "READ & RUN ME FIRST. Malware Removal Guide". I've searched the internet, but the only results I've found deal with rundll errors while running System Restore. I'm running WinXP Pro SP2 on a homebuild P4. Below I will post some of the details from the error message, and I will also attach the logs from AVG anti-virus, BitDefender, Panda ActiveScan, runkeys, newfiles, and HiJackThis. If any can help me or has any ideas, I would be very grateful.

Thanks in advance.

Error Message:
Run a DLL as an App has encountered a problem and needs to close. We are sorry for the inconvenience.

Error Signature:
EventType : BEX P1 : rundll32.exe P2 : 5.1.2600.2180 P3 : 41107dbc
P4 : dinput8.dll P5 : 5.3.2600.2180 P6 : 411096b0 P7 : 0001874f
P8 : c0000409 P9 : 00000000

Files Included in Report:
C:\DOCUME~1\ZeRo\LOCALS~1\Temp\WER5f02.dir00\rundll32.exe.mdmp
C:\DOCUME~1\ZeRo\LOCALS~1\Temp\WER5f02.dir00\appcompat.txt

 

More logs.