UPDATE: WORKS!!!! Is there an AUTO - Data Disconnect regedit?

[Fixup]

Then try this instead:

HKLM\Comm\CommMgr\Planner\Settings\SuspendResume = GPRS_bye_if_device_off

[MrHawaii]

Originally Posted by Fixup

Then try this instead:

HKLM\Comm\CommMgr\Planner\Settings\SuspendResume = GPRS_bye_if_device_off

Thanks. That is the same edit that DaimondTweak or AdvancedConfig enables, that people were having the issue with originally. That is why the original edit you posted with CDMA, I thought that would have fixed that issue.

Also, I think the unable to answer calls with data connected my be with the HTC phone skin. I will try to enable the WinMo phone skin and see if the results are the same.

But I will give it a try. I am hard resetting my phone right now to get it fresh!