files wont play anymore but used to
 

i've had my lw for about a year now and never had any problems with it really but as of a couple of weeks ago i havent been able to play anything ive downloaded thats new, ive seen about the fake files but today ive just tried to play my other older files that have been working all this time and nothing at all will play anymore, i cant enque them or anything so i cant even get the new files on my itunes to try them there, all my old downloaded files still play fine on itunes so it doesnt seem like the files have any problems but nothing will work on lw anymore, i havent changed anything with my computer either, its just stopped, i can still download ok though

im not great with computers so any help would be appreciated. thanks

Try just launching the files with iTunes, that way you'll see whether they play ok.
Go to LW's library, click on Saved Files. Highlight a file & click Explore... your saved folder will open. Right click on a file > open with > choose iTunes from the list.
If they don't play then chances are they're junk. You might've already seen the links below:)
Virus thread: Typical virus spam file sizes - Make a note of them (click on blue link to see)

Fake files showing up in search results

And a thread with lots of info about various ways of adding files to iTunes.
How to transfer music to my iPod (& iTunes)


You could try deleting LW's preferences folder & see whether that fixes the problems you're having with LW. Check the link below for more info. Remember that LW has to be properly closed before deleting the prefs folder.
http://www.gnutellaforums.com/335070-post4.html