Our elderly neighbour whom we help from time to time, took his PC to a local shop for a bit of a cleanup etc. He will click on buttons in quick succession and it had got beyond our help. However his camera is not now recognized so we tried to install the Kodak drivers and software again. It had been giving problems so the shop had removed it. The installation says it's finished but there is nothing there and when you try to look in Explorer at the programme files as soon as you click on the c/ drive the contents of the window continually jump and flicker so there is no way anything can be opened. He's taken it to be looked at again but has anyone any idea what would cause it. OS is XP Pentium 4 around 1800 I think. and he also had the ram upped to 512mb but it seems very slow.