Sadly, the access to wxforum.net won't be resolved until all the DNS servers fetch and use the new data for where wxforum.net is hosted (now at 1and1, formerly at hostgator). Since the time-to-live on the record was/is 24hrs, the local DNS will only do a reload after 24 hours have elapsed from the last time they reloaded the zone file.
The DNS changed at 10:30pm Eastern on 7-Apr-2013 so some DNS may not fetch a new one until 10:30pm Eastern on 8-Apr-2013 and that's just the way DNS works.
For folks accessing wxforum.org the getting wxforum.net (the old one), I suggest closing the browser tab, clearing cache and cookies for wxforum.* and trying again .. that should get you working during the interim period.
The built-in spell checker may be a problem.. it is based on the pspell library and the 1and1 host doesn't have that enabled. The option is still enabled in SMF, but it shows
You MUST have the pspell library installed on your server and your PHP configuration set up to use the pspell library. Your server DOES NOT appear to have this set up.
I'll see what is possible to enable on the server configuration.. meanwhile, I suggest you enable spell-check in your Firefox or Chrome browser -- it's what I use (much faster, and lets you know immediately when you make a misspelling).
Best regards,
Ken