Two things:

1) I thought USB didn't use any IRQs. I can understand how disabling COM2 would take care of an IRQ or address conflict, but it surprises me that the USB stuff would be conflicting with anything COM2 was using. But stranger things have happened at sea.

2) When speaking to someone from Microsoft, I learned the official name for those conflict icons that appear in device manager. They are called "little yellow boo-boo icons."

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Tony Fabris