My Shop just bought a PS 4223. I installed the software and the PICO SCOPE 6 program is working fine, but the PICO Diagnostics is stuck in the searching for a device mode. I unistalled and reinstalled the driver, then updated to the latest version through the CD-ROM link, and still I get the same results. If i go to one of the tests functions, the plugin loads but the program is still searching for a device. The 4223 we purchased was part of the EASE PC Scope package, which came with the PICO software, 4223, and seperate EASE software. I am also having issues with the EASE PC Scope software, it closes out any time i activate the channel. I am going to deal with this side of the problem through EASE, just thought the info may be relevant. Please respond ASAP as we are looking forward to using the Diagnostic software. Thanks ahead of time.