Would you happen to have the original registry settings for the HD2 scroll edits you posted in this thread?
http://forum.xda-developers.com/showthread.php?t=629388
Change:
HKLM/Software/HTC/HTCScroll/dist_to_pan to 20
HKLM/Software/HTC/HTCScrol/flickdown_threshold to 2000
HKLM/Software/HTC/HTCScrol/flickup_threshold to 2000
HKLM/Software/HTC/HTCScrol/friction to 14
HKLM/Software/HTC/HTCScrol/init_time_period to 1
HKLM/Software/HTC/HTCScrol/velocity_factor to 18000 <---Sorry, the old value of "18" was a typo!!!!!
HKLM/Software/HTC/Manila/HTCScroll.Enable tp 1
These re-enable HTC scroll mechanism (tip above is updated) and tweak it for shorter, but faster render distances. They make Sense scrolling as smooth as butter
I thought I made a back up before editing but apparently I didn't. Any help would be greatly appreciated!