Error: Widget disposed too early!

To all,

About twice a day my WDSCi 7 installation crashes (immediate shutdown) with
the following errors in the Error Log view:

The following is a complete list of bundles which are not resolved, see the
prior log entry for the root cause if it exists:
Bundle
update@../SDP70Shared/plugins/org.eclipse.tptp.platform.analysis.core.ui.doc_4.2.0.v200606131519.jar
[557] was not resolved.
Bundle
update@../SDP70Shared/plugins/org.eclipse.osgi_3.2.1.R32x_v20060919.jar
[552] was not resolved.
Application error
Widget disposed too early! (this one about 20 times)
Problems occurred when invoking code from plug-in:
"org.eclipse.ui.workbench".
Unhandled event loop exception
No more handles [GetLastError=0x57]
WARNING: Prevented recursive attempt to activate part
com.ibm.etools.systems.editor while still in the middle of activating part
com.ibm.etools.systems.editor
Skipping builder com.ibm.sse.model.structuredbuilder for project
RemoteSystemsConnections. Either the builder is missing from the install,
or it belongs to a project nature that is missing or disabled.
Skipping builder com.ibm.sse.model.structuredbuilder for project
RemoteSystemsTempFiles. Either the builder is missing from the install, or
it belongs to a project nature that is missing or disabled.
Digest could not be parsed:An invalid XML character (Unicode: 0x0) was
found in the element content of the document.
Invalid thread access

There are of course a lot of other details, but I left them out.
Does somebody has a clue?

Vriendelijke groet,
Adrie Donker
t 2459



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