Issue installing leonardo drivers

eried:

zeveland:
Confirming what Clamon and others have said, there does seem to be an issue with Leonardo drivers on a few specific models of Dell and, apparently, HP laptops. I'm working with one community member now to track down the bug and hope to have a fix soon.

Hey and what is the possible origin of the problem?

I suspect something having to do with the "flip" between processor and communications ports. The IDE works well enough for me to upload sketches but serial communications via USB (e.g. Serial Monitor) fail on my older XPpro machine. I do the same on my Vista machine with no problems. One is an older Compaq, the other is a recent HP. The older Compaq works perfectly with all other Arduinos. Both PC's are using the same drivers for the Leonardo device.