<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>Along the lines that George suggested. Upgrading to a newer version of sac should solve your issue. The problem you are experiencing was fixed in SAC version 100.1 in 2005 ( 101.0 in 2007 ). Using either SAC distributed by IRIS or MacSac should solve your problems.</div><div><br></div><div>Brian Savage</div><div><a href="mailto:savage@uri.edu">savage@uri.edu</a></div><br><div><div>On Sep 15, 2009, at 3:21 AM , George Helffrich wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Dear List -<br><br><span class="Apple-tab-span" style="white-space:pre"> </span>I suspect this is due to the lack of TrueColor support in the X support in SAC2000. If correct, you'll get the same result any time you use color -- is this true? Experiment and see. <br><br><span class="Apple-tab-span" style="white-space:pre"> </span>You can avoid triggering the color problem by plotting in black and white using 'spectrogram gray' or 'spectrogram xyz' and then contouring the resulting xyz file.<br><br><span class="Apple-tab-span" style="white-space:pre"> </span>You might be able to configure your X server not to provide a TrueColor screen choice. This is a black art, not for novices, but you might have some success by that route. (I can provide no advice -- X installations vary widely, and you'll have to consult your own distribution manuals.) <br><br><span class="Apple-tab-span" style="white-space:pre"> </span>If you have access to a Mac, you could also use MacSAC which has TrueColor support and which also has a functioning spectrogram command.<br> <br>On 15 Sep 2009, at 07:40, Omar Afif wrote:<br><br> <blockquote type="cite"><span style="font-family: Times New Roman; ">I have tried many times sonogram and spectrogram functions in SAC_Linux ver(00.59.44), but unfortunately I have gotten massages below then SAC has crashed.</span><br><span style="font-family: Times New Roman; ">========================================</span><br><br><span style="font-family: Times New Roman; ">SAC> read test_123456.sac</span><br><span style="font-family: Times New Roman; "> </span><br><span style="font-family: Times New Roman; ">SAC> sonogram</span><br><span style="font-family: Times New Roman; ">Window size: 200 Overlap: 100 FFT size: 512</span><br><span style="font-family: Times New Roman; ">Warning: ORDER begin reset to 1/2 length of correlation window.</span><br><span style="font-family: Times New Roman; ">ORDER = 100</span><br><span style="font-family: Times New Roman; ">Spectrogram dimensions are 512 by 343 .</span><br><span style="font-family: Times New Roman; ">X Error of failed request: BadMatch (invalid parameter attributes)</span><br><span style="font-family: Times New Roman; ">Major opcode of failed request: 72 (X_PutImage)</span><br><span style="font-family: Times New Roman; ">Serial number of failed request: 66</span><br><span style="font-family: Times New Roman; ">Current serial number in output stream: 68</span><br><span style="font-family: Times New Roman; ">=======================================</span><br><span style="font-family: Times New Roman; "> </span><br><span style="font-family: Times New Roman; ">Could any one advise me or help me to solve this serious problem, please?!</span><br><span style="font-family: Times New Roman; "> </span><br><span style="font-family: Times New Roman; ">Hot regards,</span><br><br><span style="font-family: Times New Roman; font-size: 22pt; "> </span><br><br><span style="font-family: Times New Roman; color: rgba(0, 0, 254, 1); font-size: 11pt; ">==================</span><br><b><span style="font-family: Times New Roman; color: rgba(0, 0, 254, 1); font-size: 11pt; ">|</span></b><span style="font-family: Times New Roman; color: rgba(0, 0, 254, 1); font-size: 11pt; "> Omar H. 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