There is a problem that the rays from the quarry and marks are not the original ones, what could be wrong with the PC or mine or mod?
Windows 10 x64
Java 7
DDR 2
CPU intel xeon
GPU amd RX460

Sorry for asking about the old version)

there is a chance that the rays just got replaced in newer versions of 1.6.4 buildcraft, but do make sure to check you mod file (and maybe even update buildcraft if there is a newer version for 1.6.4 lmao)