Thread: [ask]caller identity

guyz, do u know that old WM 6.0 can identify the private caller, and when I upgraded my HTC to 6.1, I can't identify private caller . . .
anybody can give me a third party program or something that make my phone can identify the private caller again??
I mean, I want to get their number when they calling me like older WM 6.0 version. . . .
thanks a lot guyz . . .
I need that, because sometimes I've got annoyed caller . . .