are updated to their latest versions, reinstalled even. It is more of a keyboard issue than a mouse issue, as I said the alt-key gets stuck on two different brands of usb keyboards (Microsoft and Kesington). It could be due to the fact that both the mouse and keyboard are connected to a USB hub (AC powered). However, I do not have any stuck alt-keys when using linux on the same laptop. So, if it is not spotty power from the USB hub or any manufacturing bugs with the two items, then it must be faulty drivers. However, I guess I am stuck since I use the latest drivers from Microsoft's website.