I have been using CWS 5 for our C6500 since we got it about a year ago. I installed CWS 5 on my PC (Windows XP SP3) and attached a DTP41 so I can run calibration, but now every time I click on calibration nothing happens, it seems to think for a second then nothing. I noticed the configuration tool doesn't work either. I got excited when I noticed there was an update to 5.3, but that didn't help my problem. Is anyone else having this problem and/or have any suggestions?