Did you find any solution for this? I have a similar issue with my Gigabyte Motherboard GA-8I865GME-775. My keyboard stops functioning and comes back after sometime. Everything works fine, but the issue is only with my keyboard. I have tried installing new drivers, but the problem didn't go away. I'm using Windows 7, 64-bit. I changed my keyboard several times, but did not help.
I have also tried changing the keyboards.
Pleae let me know if anyone has a solution or have come across such situation and have resolved the issue.
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