Treo Pro not vibrating on incoming calls

[isaacl]

Hi all.
I am using CFay's first 6.5 ROM (which worked the best for me) on my phone, and everything was working fine.
I recently had another issue with my phone, and got it replaced by Sprint.
I first reflashed that ROM, but when I tried to restore the backup I had made on the previous phone with Sprite backup (the full version), the phone won't vibrate on incoming calls. It vibrates afterwards, to notify me that I missed a call, but not while the call is coming in. When I turn the ringer switch off of vibrate, it only makes a short quiet sound, instead of the regular ring.
Everything else seems to be working fine...
I tried uninstalling and then reinstalling Treo Alerts and MortScript, but nothing worked.
Anyone have any ideas?
Thanks!!