ok so today started spraying in a 80 ha field all going well section control , auto steer all good , able to drink morning coffee & enjoy the radio & a look around (trimble 750 with field iq & rtx subscription ) anyway 20 ha section behind a big mob of granite rock & trees sent my gps all silly ,sideways & know where near accurate ! after bout 2 hours of frustration & 4 phone calls , reeboot the system & work out the granite rocks were bouncing the gps signal , dealer had never heard of this problem , has anyone else had this problem ?:14: