All the DVF files can be played with windows Media Player , but only one or 2 can be played with switch, on allmost all apears this error message:
switch.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
I have installed the programs in another computer and I believe that there is an incompatibility of your programs with skype , I suggest you check that, after both instalations, skype lost their user and password, which never happened before, this can not be a coincidence.
Thanks for your help.
Rafael