I've just installed W7 RC x64 on an HP TX2500 tablet. It seems to have automatically installed all the relevant drivers. However, about every 10 seconds, I get the sound of a USB device being removed, and occasionally being inserted. Everytime that happens, the device manager tree, if I'm looking at it, collapses and reexpands. I'm not seeing if there's any difference on the tree when the tone sounds. All devices seem to be properly installed and updated. Any thoughts? I've searched here and elsewhere, and haven't even seen this problem mentioned.