I've been playing iSketch for several years, and this has actually happened to me once or twice before now.
I went to sign in today, and all my settings were gone, so I have been returned to a newbie status.
WHYYYYY?!
I got to tell you, it's rather frustrating being an old-school player of this game only to suddenly be labeled a newb again :(

-Tigerstriped/Justice

Hiya, welcome to the forum :)

There seems to be issues with iSketch in general, due to some updates that are taking place. You're not the only one affected. This thread (http://www.isketchforum.net/isketch-went-crazy-t2815.html) should help you.

If iSketch gets a little too frustrating, you could get addicted to the forum instead, heh. :P

I think it has something to do with reminding us of our humble noobish roots. But seriously, it might be worse for you than for me because I'd ruined my stats by being afk for long periods of time while still in a room.

Not isketch's fault, it's adobe's fault, they sent out an update for shockwave recently that caused this.