Thanks for the replies.
Have tried home, last location and various other sims, none of them work.
Have tried vanilla viewer, bento and firestorm (even set it to text only) - all clean installs with no logins.
Only theory i have so far is the Lumiya viewer somehow messed up my avatar, either creating a bridge or something??
BTW when im logged in with Lumiya and i try to log in from my laptop i get the the server has begun a login or whatever error it is.