A fix has been released for the synching problem between Windows 7 and iPhone that occurs on Intel P55 motherboards.

It affects 64-bit versions of Windows 7. Both iTunes 9 and Windows detect the iPhone but it refuse to sync.

Microsoft has not made a comment about the issue.

Users can upgrade their BIOS and chipset drivers to fix the problem. They could also use compatibility mode in Windows when they set it to Vista SP2.

Source: Macnn.com