Windows 7: "VALID" characters in Playlist?

Can someone PLEASE HELP me? I have tried twice now to make a Slide Show using WMC......named my Playlist.....edited out photo collection....got to FINISH and BOTH times [different Playlist names] it tells me: "WMC cannot save your playlist. Use ONLY valid characters on the playlist name and try again."

I wish they'd tell a person what was consdidered invalid. My first name for it was: "Michael's Photos" - - - I fiured must have been that apostophe - so next I named the 2nd attempt: "My Photos".......both INVALID????

TKS michael

Are you actualy using the quotes?

If I try quotes it tells me I can't use \ /:*?|< >."

NO - only quoting what I named my Slideshow and what it reported as my error[s]. In my case I was not fortunate enough to have it ell me, like it did you, WHAT is/was invalid. I expected that - previous versions did the same.

Strange then. I just created 2 playlists with the exact examples you gave me. I'm running 64 bit home premium on 2 different machines.