SB crashes when launched via scheduler

[11225e]

when running SB via its scheduler, SB gets ALMOST to the end of its scan then ALWAYS crashes. there is nothing else running at the time. system's not on battery power. everything "looks" ok with the network and the system.
Windows and all apps are fine - it's just SB that crashes.
can't find anything off in Event Viewer.
if I run SB manually, it's fine.
I am running Windows 7 with plenty of memory.

Error message:

Spybot - Search & Destroy has stopped working

Problem signature:
Problem Event Name: APPCRASH
Application Name: SpybotSD.exe
Application Version: 1.6.2.46
Application Timestamp: 2a425e19
Fault Module Name: StackHash_e98d
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: c0000005
Exception Offset: 5c746e65
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033
Additional Information 1: e98d
Additional Information 2: e98dfca8bcf81bc1740adb135579ad53
Additional Information 3: 6eab
Additional Information 4: 6eabdd9e0dc94904be3b39a1c0583635

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I also have generated a bug report if required.
Thanx in advance for any help!