Hello,<div><br></div><div>I have several subjects with bad surfaces in fs 5.0.0.  After checking their talairach.lta file, these transforms are all bad.  I tried using tkregister2 to create a good talairach.lta file, but it just wasn&#39;t working.  I tried rerunning these subjects in fs 5.1.0, and their talairach.lta files are all good.  Can I just copy the fs510 talairach.lta file to the fs500 subject folder, or will that cause other issues that are not obvious?  As a side note, what would the tkregister2 command be to create the lta file?</div>

<div><br></div><div>Thank you,</div><div>Jeff Sadino</div>