I had it set as the default viewer for all picture and video files, then installed Intervideo to use with my TV tuner card. Now, all pictures & video stores on my computer have changed to Intervideo files. I know I un-clicked all those types of files from using Interv. as the default viewer when I installed the Interv. app. How do I re-set Win Media Player as the default viewer? I've opened and looked thru it and can't locate how to do that. Thanks!