LPX changes audio gain on import

Hey all,
I'm having a small issue with an audio sample that LPX seems to be changing the gain to when importing.
I'm recording a spoken vocal. At a certain point, one bit has some mouth sounds. I export this clip in aiff, open it in Izotope RX, eliminate the noise, export in aiff (up to this point it keeps the same gain), and then I import it back into LPX and the gain has changed from the original. It seems to have added some high end too. Up to the first to last step, the audio file has remained unchanged.
Anybody know what might be going on?
Thanks,
Z

Thanks, Jeff. I should have specified that doing a match frame on each clip was not something I was looking forward to. The sequence is more or less complete and doing a match frame on each talking head clip individually would be mind numbing. I don't want to numb my mind.
So, I didn't find a "reset" button per se, however, if anyone else cares to know (and because I don't find this documented in any of the online tutorials I've found), here's what I did to satisfy my situation:
To reset audio gain on a large selection of clips in Peremiere Pro CC after you've messed up the audio levels with "Normalize all peaks":
Select all clips (or any subset of the larger whole)
Right-click > Audio Gain (Actually I have a shortcut set to the "G" key for this)
Choose "Normalize MAX peak" and set the value.
This doesn't actually "reset" the original levels, but much to my happy surprise, I discovered that the Normalize GAIN feature seems to use the ORIGINAL audio values (not the newly messed up levels).
All's well that ends well!
I hope this helps someone else!

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Source:        Application Error
Date:          12/08/2010 14:28:51
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:
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<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
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<EventData>
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    <Data>4bf119d2</Data>
    <Data>MSVCR90.dll</Data>
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    <Data>4a1750b0</Data>
    <Data>c0000005</Data>
    <Data>000000000001dfcd</Data>
    <Data>16ec</Data>
    <Data>01cb3a21ad8357e4</Data>
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Message was edited by: racso39

LPX changes audio gain on import

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