USB Blaster replace/repair

I've had several ByteBlasterII's that either failed after a few uses or never worked. Some painful (partially due the fact Altera hasn't published a schematic for this device) investigation showed the problem to be weak vias on the PCB that weren't reliably plated through. Some vias on the board had been repaired/reinforced at the factory using a small length of wire (standard practice). Some apparently were missed during assembly/test, or were ready to fail but hadn't yet. After these were tracked down and repaired the blasters work fine.