imagemagick failing on pdfs windows

gistfile1.txt

D:\Program Files\ImageMagick-6.6.6-Q16>wget freeldssheetmusic.org/example.pdf
--2011-06-16 17:49:06--  http://freeldssheetmusic.org/example.pdf
Resolving freeldssheetmusic.org... 69.89.31.235
Connecting to freeldssheetmusic.org|69.89.31.235|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 21280 (21K) [application/pdf]
Saving to: `example.pdf'

100%[======================================>] 21,280      --.-K/s   in 0.1s

2011-06-16 17:49:06 (163 KB/s) - `example.pdf' saved [21280/21280]


D:\Program Files\ImageMagick-6.6.6-Q16>convert.exe -density 125 example.pdf[0] yo.png
Unrecoverable error: rangecheck in .setuserparams
Operand stack:
    --nostringval--  --nostringval--  --nostringval--
START 0 2588336 1246477 1476808 192904 true 1141 5 <3>
END PROCS 0 2588336 1257776 1476808 194288 true 1140 5 <3>
gs_std_e.ps 0 2608432 1263831 1496904 199000 true 1140 5 <6>
gs_il1_e.ps 0 2608432 1266014 1496904 199000 true 1140 5 <9>
END FONTDIR/ENCS 0 2608432 1266192 1496904 199000 true 1140 5 <15>
END DEVS 15 2612016 1273304 1496904 199000 true 1140 5 <15>
END STATD 15 2612016 1280460 1496904 200624 true 1140 5 <39>
END GS_FONTS 15 2641960 1309634 1496904 200624 true 1141 5 <45>
END BASIC COLOR 15 2662056 1319523 1496904 200624 true 1139 5 <48>
END LEVEL 1 COLOR 15 2662056 1321251 1496904 200624 true 1139 5 <51>
END IMAGE 15 2662056 1324553 1496904 200624 true 1139 5 <54>
gs_btokn.ps 15 2662056 1327995 1496904 200624 true 998 4 <57>
gs_dps1.ps 15 2662056 1329340 1496904 200624 true 998 4 <57>
gs_dps2.ps 15 2662056 1331347 1496904 200624 true 998 4 <57>
gs_type1.ps 15 2682152 1336273 1496904 200624 true 998 4 <57>
While reading gs_lev2.ps:
%%[ Error: invalidaccess; OffendingCommand: put ]%%
START 223725 2736768 1402138 1496904 202880 true 1002 7 <92>
END PROCS 223725 2756864 1416773 1496904 204264 true 1000 7 <92>
gs_std_e.ps 223725 2756864 1419500 1496904 205648 true 1000 7 <95>
gs_il1_e.ps 223741 2756864 1421683 1496904 205648 true 1000 7 <98>
END FONTDIR/ENCS 223741 2756864 1421861 1496904 205648 true 1000 7 <104>
END DEVS 223741 2760448 1428973 1496904 205648 true 1000 7 <104>
END STATD 223741 2780544 1439457 1496904 207272 true 1000 7 <128>
END GS_FONTS 223741 2800640 1466953 1496904 207272 true 1000 7 <134>
END BASIC COLOR 223741 2820736 1476842 1496904 207272 true 998 7 <137>
END LEVEL 1 COLOR 223757 2820736 1478570 1496904 207272 true 998 7 <140>
END IMAGE 223757 2820736 1481872 1496904 207272 true 998 7 <143>
gs_btokn.ps 223757 2820736 1485314 1496904 207272 true 998 7 <146>
gs_dps1.ps 223757 2820736 1486659 1496904 207272 true 998 7 <146>
gs_dps2.ps 223757 2820736 1488666 1496904 207272 true 998 7 <146>
gs_type1.ps 223757 2820736 1490216 1496904 207272 true 998 7 <146>
While reading gs_lev2.ps:
%%[ Error: invalidaccess; OffendingCommand: put ]%%

D:\Program Files\ImageMagick-6.6.6-Q16>convert -version
Version: ImageMagick 6.6.6-3 2010-12-01 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP