The computer processor is executing commands too quickly for the legacy software code.
Contact a local two-way radio shop or search for "Motorola GM950 programming near me." They can read/write frequencies, squelch types (PL/DPL), and other settings safely. motorola gm950 programming software
The original Motorola Radio Service Software (RSS) and early Customer Programming Software (CPS) for the GM950 were built for older operating systems. The computer processor is executing commands too quickly