sliding keyboard doesn't wake device

[natecg]

Hello All... often when my TP2 has been dormant for while (I haven't used it for a few hrs), when I slide open the keyboard the device doesn't wake or trun on... 100% of the time it does when I close it and open it again, which leads me to believe this is a software and not hardware issue. It if was hardware I can't imagine that it'd work 100% off the time on the second slide.

any thoughts about this? I've done a soft reset.
Nathan