JayADee:nathan:I use my pen on and off during most of the day, writing, instead of a mouse etc and I don't have this issue on either SP4 or SB
No help to you I know, but we do know about this issue and are still investigating it. Hold tight.
It's nice to hear from you, thanks.
Interesting news there. If it is particular to the i7 configuration (no idea) then you might like to explore workarounds. Disabling a core in msconfig and restarting might be an interesting go at it. ; ).
Edit: actually that's a bit radical maybe disable hyperthreading before going that one.