I was a Windows XP user for years and often relied on Universal Desktop Ruler for my engineering work. Two years ago I bought a MacBook Pro and started running Windows programs through the Parallels software, which creates a "virtual machine." My virtual machine was Windows XP and I was able to continue running Universal Desktop Ruler without trouble.
Last December Parallels locked up and I had to reload everything. I also had to buy Windows 7 because XP wouldn't work anymore. Now I am unable to get Universal Desktop Ruler to function. As far as I can tell, the program seems to load and run but does not display anywhere, so I can't use it. I have uninstalled and re-installed to no avail.
Any suggestions will be welcome. Measuring with Photoshop's ruler function is very awkward, not a satisfactory substitute.