cursor move is jurky ?

i got SVN 51200

and when i move object in viewport i find it jerky like does not move slowly and difficult to precisely locate object or scale

anyone got this effect lately ?

seem to move in increment of ± 1BU even if i zoom in ?
is this normal now ?
or some set up have been change?

i did not change my user preferences so wondering what has change here!

might be a bug


anyone can test this on windows 32 bits vista

if a bug i’ll report it