PuterDudeJim ....SDC has to handle dynamic site content which is managed by considerably more than one server. If/when there is a shutdown/reset things will get 'wobbly', whether on SDC or standard IE/FF/Op browser.
If SDC's content has not updated, etc then until such time as caches clear/reset, etc simply access Wincustomize via your browser [assuming the database is accessible OK there].
If not, it's as with any temporary glitch....it's temporary.
I personally do not use SDC to browse WC so have not noticed a recent issue with it, though generally I read there are some ini files that can be deleted and the DB will restore correctly.
Someone will clear this up for you shortly...I'm sure....
Your second thread on the same subject was redundant, as looking further up it is clear/likely to be the same issue, so as suggested use your normal net browser for the time being...until the updates/work is resolved...