Hi All. Came across this error on a Zope install that had been up for 9+ days. The page has rendered flawlessly hundreds of times over several months and then tonight kept retunrning this error. I could find no solution, until I restarted the Zope instance and everything returned to working normally. Disk space is fine, Zope memory usage normal etc. I've got some more info on the error returned (the full request etc.) if that would help anybody, or if it matters at all. This is really the first time in several months (back to 1x that I've ever had something like this happen). Josh System Unavailable This site is currently experiencing technical difficulties. Please contact the site administrator for more information. For additional technical information, please refer to the HTML source for this page. Thank you for your patience. Error type: SystemError Error value: unknown opcode Traceback (innermost last): File /websites/Zope-2.1.0/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /websites/Zope-2.1.0/lib/python/ZPublisher/Publish.py, line 179, in publish File /websites/Zope-2.1.0/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ElementWithAttributes) File /websites/Zope-2.1.0/lib/python/ZPublisher/Publish.py, line 165, in publish File /websites/Zope-2.1.0/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: 3) File /websites/Zope-2.1.0/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: 3) File /websites/Zope-2.1.0/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: 3) File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: 3) File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_In.py, line 691, in renderwob (Object: mainbox_items) File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: mainbox_methods) File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_Util.py, line 335, in eval (Object: _[box_contents]) (Info: box_contents) File <string>, line 0, in ? File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_Util.py, line 161, in careful_getitem File /websites/Zope-2.1.0/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: calendar) File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: calendar) File /websites/Zope-2.1.0/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: cal) File /websites/Zope-2.1.0/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: cal) File /websites/Zope-2.1.0/lib/python/Products/TinyCal/TinyCalendarTag.py, line 120, in render File /websites/Zope-2.1.0/lib/python/DateTime/DateTime.py, line 518, in __init__ File /websites/Zope-2.1.0/lib/python/DateTime/DateTime.py, line 724, in _parse SystemError: (see above) ___________________________________________ Joshua Brauer joshua@brauer.org http://www.brauer.org ___________________________________________