If you see a Reg-T margin call on your TOS platform, make sure you contact the accounts desk before you go all crazy and start liquidating (yes, I know they'd do it for you if it was real). It seems they have an error in the system right now that doesn't recognize your account cash. Just an FYI so you don't get freaked out or lose some cash because you liquidate a bunch of stuff at the market.
I get more aggravated with TOS every day. This latest update is the biggest POS ever. Today, daily prophet charts aren't working. They are aware of the problem and are working to fix it ASAP, according to support. Great.