I also sometimes get green pipe wires. I have no idea why this is, has anyone else had this problem?
The mods I am running are:
forge universal 6.4.1.411
Optifine for 1.4.5
Treecapitator
buildcraft
additional Pipes mod
IC2 1.109.113
Millianrie Village mod
Any ideas or work arounds if there isn't a simple solution?