MP3's changing file types

[Bahamut2000X]

Ok I'm startiong to get annoyed now because MP3's I have on my computer are suddenly changing into screen savers. I haven't done a thing except when I looked in my folder (afetr it failing to play in media player) I saw it now said it was a screen saver. And I don't know how to change it back. Does anyone know how to fix this?

[Bahamut2000X]

Sorry for the double post, but I need to add a attachment of what popped up after I messed with the MP3 that changed file types.

I'm not sure what it is, if anyone knows what's going on and how to fix it, it would be much appreciated.

[Shoeberto]

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In all likelyness, it's a virus.

If you have an antivirus program, update the definitions and try in clean it. If you don't have one, AVG is a great freeware antivirus program.

[Bahamut2000X]

Umm where can I get this AVG?

And Ya I thought it was a virus too, but it hasn't done much it seems except that stupid pop up every now and then.

[Endless]

Took me 10 seconds to google it.

http://www.grisoft.com/us/us_dwnl_free.php