recurring kernel panic when changing Grid mode

[ajs]

I have now gotten a kernel panic several times (at least 4 in the last few weeks) when changing the Grid mode from "Bars: Beats" to "Regions/Markers". Too many times to just be a coincidence.

PT6.7cs3
OS X 10.3.5
G5 Dual 2Ghz

From the panic.log:

*********

Wed Dec 15 16:05:26 2004


panic(cpu 0): thread_invoke: preemption_level 1

Latest stack backtrace for cpu 0:
Backtrace:
0x000836E4 0x00083BC8 0x0001EDA4 0x0002AD04 0x0002B300 0x0008D984 0x000138A4 0x000219E8
0x2EB64E1C 0x2EB64D4C 0x2EB6CEC4 0x2EB6CFB4 0x2EB6A564 0x2EB6A4C8 0x351D3C3C 0x00276888
0x00096210 0x000945AC
Kernel loadable modules in backtrace (with dependencies):
com.digidesign.iokit.DigiDal(6.7)@0x2eb63000
dependency: com.apple.iokit.IOPCIFamily(1.4)@0x2eb9b000
com.apple.driver.AppleMPIC(1.2.3)@0x351d2000
Proceeding back via exception chain:
Exception state (sv=0x35269C80)
PC=0x0008D830; MSR=0x00009030; DAR=0x13F6D000; DSISR=0x42000000; LR=0x0001CD7C; R1=0x1EA03CB0; XCP=0x00000014 (0x500 - Ext int)
Backtrace:
0x0001CD94 0x0001CECC 0x00042084 0x00021668 0x0001BCE8 0x0001C0F0 0x00094358 0x0000000B
backtrace terminated - frame not mapped or invalid: 0xBFFFE0A0

Exception state (sv=0x35269000)
PC=0x900074C8; MSR=0x0000F030; DAR=0xE9B9C000; DSISR=0x42000000; LR=0x90007018; R1=0xBFFFE0A0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 7.5.0:
Thu Aug 5 19:26:16 PDT 2004; root:xnu/xnu-517.7.21.obj~3/RELEASE_PPC