[latepenguin]

Ok, so I managed to fix two out of the three.

I got rid of the annoying piano sound when I hit the hard end button by disabling the beep sounds when dialing. (Phone/Tools/Options/Keypad: Off)

If you just want to remove that annoying beep when pressing end and keep the dial sounds then just remove the registry entry.

HKEY_CURRENT_USER\ControlPanel\Sounds\Ending

Camera videos and wmv's play in the htc album by installing the following in order.

1) FSP, DShow, WMP, YouTube, Video Fixes.cab
2) HTC_mHubVO.cab
3) HTC_VideoPatch.cab

The fix cab from that link doesn't work. This one does.

Now only thing I have left is the task manager icon issue. I've checked the installed programs with sktools and found no trace of it.