It worked fine last night after I installed 0548 and it even opened normally last night right after installing it and I believe again later. Today, when I tried to open a placemark it told me "The application failed to initialize properly (0xc0000005). Click on OK to terminate the application." I click ok and it tells me again. Any quick fixes or do I have to do a fresh install?

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Edit: I shut down my computer again most of the day and it is now working normally. With nothing done other than shutting down.
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