Gone back to using old laptop with wireless mouse and keyboard and had to update numerous programs. Now the mouse or cursor has movement issues. In win explorer can only select last file in directory - ie 'zebra' and unable to scroll down web pages, pdf files etc. Tried system restore before updates, rebooted, did system check and everything seems ok. Still cannot move around web, explorer etc and even keyboard shortcuts won't work. Can't even try to install drivers as only the 'cancel' key is functioning and not 'continue' etc as 'cancel' is the last option where the cursor selection sticks. Resorted to sending this on mobile phone.