I checked a T20 whose backlight flickers and turns off. By changing parts w= ith=20 two other ThinkPads I found out, that the the inverter and the cable are=20 okay =E2=80=93 the flourescent lamp itself must be broken. Where can I get such a lamp? How hard is it to change the lamp? =2D-=20 Hannes Kuhnert, Chemnitz, Germany