I had a DX-120 donated to my high school science classroom from my former employer (I’m a science teacher in retirement). This instrument was successfully run via a UCI100 connected to Chromeleon 7.2x for years but I’ve had to do a clean install on a school PC. I’ve pretty much got it going except it will not kickoff the InjectValve.Inject command and the system stalls at “Waiting for Inject response on UCI100_INPUT4. Input 4 is the UCI100 channel that I have connected to the Inject port on the TTL Input connector on the back of the instrument. ThermoFisher support gave me the kiss-off. Any ideas?