I've had my Sanyo Z2 for almost 2 years now, and it's been great. However I've started seeing this occasional problem: On switch on all is ok, it works on whatever input is selected. At some point I switch inputs and get a blue screen. I then switch back to the previous input and still get a blue screen (this input was working previously). So I switch off and the red light continues to flash indefinitely (I left it over 20 minutes on one occasion). Eventually I flick the power switch, power it up and all is well again. This has happened three times in the last month or so. Has anyone else experience this problem, or does anyone know what it is and whether I can do anything about it. Thanks in advance.