I had a problem like that too .... ctrl+c .... really pissed me off. But it occured after 2 and a half yrs of using
I opened my keyboard up and cleaned it
When i closed it back again it was good as new
w00t
Btw congrats on the new logitech one ... what colour is it ??
My whole pc is white. Imo looks good but needs a lot aof cleaning