Apple Mobile Device Service has stopped working. Vista SP2, iTunes 10.5

Hi there. I've been having an issue syncing my iPhone to iTunes. Here's a description of the problem:

-With an up-to-date Apple Mobile Device Service, error windows constantly pop-up saying that it has stopped working. If I close the error window, another one pops up fifteen seconds later.

-If I plug my iPhone into my computer, it is not recognized in iTunes, because Apple Mobile Device Service is not running.

-This error does not occur on my desktop PC, so I have been able to sync my iPhone by loading all of my files onto a USB and transferring them onto it. However, I would much rather not.

Here are the steps that I have taken:

-Uninstalled and reinstalled iTunes 10.5 with firewall off

-Individually uninstalled and reinstalled the Apple Mobile Device Service with firewall off

-Stopped and Restarted the Apple Mobile Device Service in Administrative Tools -> Services

-Extensively searched the internet for solutions

-Replaced Apple Mobile Device Service for iTunes 10.5 with Apple Mobile Device Service for iTunes 10.1 (This worked PARTIALLY. The error windows have now stopped popping up altogether, but I cannot sync with iTunes because the Apple Mobile Device Service is out of date. It asks me to update it, I agree, and I get the Apple Mobile Device Service that spawns error windows and still does not allow me to sync my iPhone.)

I am running Windows Vista SP2, and iTunes 10.5. My Internet Security suite is AVG Internet Security 2011. My iPhone is running iOS 5.0.0. Here is a full report of the error:

Problem Event Name: APPCRASH

Application Name: AppleMobileDeviceService.exe

Application Version: 17.88.0.8

Application Timestamp: 4e66ceff

Fault Module Name: kernel32.dll

Fault Module Version: 6.0.6002.18449

Fault Module Timestamp: 4da47967

Exception Code: c06d007e

Exception Offset: 0003fc56

OS Version: 6.0.6002.2.2.0.768.3

Locale ID: 4105

Additional Information 1: 599e

Additional Information 2: 30e036b93244793a42096718411570bd

Additional Information 3: 7229

Additional Information 4: 80ac1a21efab121ee7fb685acd0c57bc

Any ideas would be greatly appreciated. Thanks! 🙂