Hi...
While I'm working on a project in Windows XP...

I am using windows media player 10, on my windows.
I don't know y, but sometimes in my project the media player (which the version is 6 or 7 in Autoplay) changes to the current version of media player on my windows...
And lots of ERRORS occur after that... for example:
I cannot open the object properties (or when I open it, Autoplay gives me an error which doesn't have any messages and there's only an OK BUTTON),
or
when I wanna excecute or preview my project, it 1st asks me this question that "the file extention is not compatible with the file. Do you want media player to try playing it ?" it's sth like this..
anyway, I'm sure that u haven't ever seen anything like this, but what's the problem ??

I also have tried, mp3, wav, wma extentions but it always asks me the same question...
By the way, while I was working on my project, media player was NOT open.

I said that sometimes there is no problem, but sometimes it just I really don't know what to do....

Thanx for any idea !