I have not seen it on the T but I work with similar displays and usually it is the internal connections between the segments and the drivers that start to come apart. When you press on them it is enough pressure to reconnect but it goes away. Unless you have a loose power wire to it that you are disturbing it is probably going belly up. <img src="/forums/images/graemlins/barf.gif" alt="" />

1997 T-100 4X4 Xcab,Warn Hubs
02 Camry LE
2008 Yaris