how do i change my acceptance of 'corrupted' files?

[hana]

forgive this possibly ignorant question, but i've searched all the helpsites & can't find an answer..
i'm using a recent version of free limewire, i have mac os x, & am in general having good luck with it all. i occasionally get the 'limewire has detected a corruption in this file. do you wish to continue?' message. i always select no. so the last time i got the message, i clicked 'answer this way everytime,' intending to click no after that (the default answer is yes). and it disappeared, so now i am continuing to d/l all these corrupt files - though i don't want them. there must be a preferences bar somewhere where i can change this option -please please tell me where i can change it!
thank you thank you thank you
hana