what's up?i can tell you don't feel bad,i too had this problem...i was messing with pots and next thing i know it was there...i wish i remembered exactly what pot it was i turned to fix it,but i dont...it CAN be resolved with no problems though..
brickie
p.s. the pot if i recall was on the convergence board,it was not a convergence pot for RGB...i don't think...beleive it was too the top of the white plastic that surrounds the convergence pots...