cursor isn't stable

[p_a_siegmund]

When I'm tryingtence to type va sen
there's an example - when I'm trying to ctype a senten to type a sentence the cursor jumps off the screen or back into what I've previously typed.
g
Really really annoyin annoying. Help! This happennd s in windows, gmail, yahoo - even here

 

[popatim]

Have you tried another mouse?