[rie]

I have the same problem. Neither my Mac (usng Missing Sync for Windows Mobile) nor my sister's laptop (Windows XP and ActiveSync) recognize my Diamond via USB, but they used to, perfectly. My Mac recognizes it via Bluetooth, though, but it only sends things to a Bluetooth folder and I can't drag-and-drop things right where I want them to be, which I miss. I can still send files vie Bluetooth, but USB is much faster than Bluetooth.

I tried all the things you did, and nothing changed, except for a hard reset made the phone not recognize the internal storage, so I installed a HotFix for that from HTC's support site to fix that issue.

I called Sprint, went all the way to Advance Tech Support, and they're sending me a replacement for free because I troubleshooted it, and went to the Sprint store, where the problem was confirmed. That the only "fix" I could find...