I am having an issue with Win7 x64 Ultimate and my Arduino UNO......
I can send serial data perfectly fine yet the serial monitor does not receive any data.
If I plug this same Uno into my WinXP laptop it sends and receives serial data fine.
I have gone through and installed different versions of the UNO drivers on the Win7 machine to no avail. Any one have this issue before or have any ideas on how to resolve this?