diff --git a/docs/BUGS/Complex - Dope.txt b/docs/BUGS/Complex - Dope.txt
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+"Dope" demo bugs (DOSBox-X's fault)
+
+BUG: Noticeable pause of music at points where VGA BIOS is called to set video mode during demo
+
+BUG: You can only run the demo once. Additional attempts log "illegal instruction" messages and
+     crash back to the DOS prompt. You must close and reopen DOSBox-X to run the demo again.
+
+ - I know for a fact that is not a feature of the demo. Having run it on real hardware, I know
+   the demo can be run again after the first time (though it is not reliable at reinitializing
+   the GUS to a known state).
+
+ - The debug messages from DOSBox-X are:
+
+Warning: Illegal read from b66b1da, CS:IP 8: b66700a
+DYNX86:Can't run code in this page!
+Warning: Illegal read from b66b1da, CS:IP 8: b66700a
+Warning: Illegal read from b66b1db, CS:IP 8: b66700a
+141992554: CPU:CPU:66:GRP5:Illegal call  7
+Warning: Illegal read from b66b1da, CS:IP 8: b66700a
+Warning: Illegal read from b66b1da, CS:IP 8: b66700a
+Warning: Illegal read from b66b1db, CS:IP 8: b66700a
+