I just nuked my account today( I created and subscribed last night), and added about 30 words this morning. However, this afternoon when I started practicing in the SRS mode, Skritter gave me words that I had studied 7 days ago (!!??!). How can it be possible when I just added those words this morning, and this is the second time I have seen them?

It makes no sense at all! Please come and help this newbie.

Just figured out a bug that sounds similar... can you check that the time set on your computer is completely correct? Someone had their computer time to 2002 and was wreaking royal havoc on their SRS. I will try to make a fix soon, but if this is the cause, then setting your computer time correctly should do the trick in the meantime.

Also, when you deleted your words, did you wait for it to complete before navigating away from the page? It should have said 'Done!' when it was done.

Yes, I checked my time and it was set to the future!!!No wonder!
Thanks!

Phew, good to hear it was the same bug. I've uploaded a fix that should make the system work for the time being, even if your computer time is off. I'll wait until Nick gets back to do a more permanent fix.