I think the trackball flashes red, because it's a error statement that the softkeys are faulty.
I think the problem made by flashing the mtd0.img from this website ks33673.kimsufi.com/misc , because it's for a HTC Desire.
So i think i have to flash the right mtd0.img for a Nexus One LCD to fix the Problem.
But i can't find something like this.
After this procedure the display don't work and i flashed the PASSIMG_Passion_Google_WWE_2.16.1700.1_FRG33_relea se_signed.zip with the new HBOOT for my LCD on my Phone. Then i flashed CyanogenMod 6 stable and it still works fine, but the softkeys always dark and the trackball flash red.
If the room bright enough, and the softkeys has not to flash, the trackball doesn't flash red.
So i need help, please.
Sorry for my english, it's not my native language.