LoginPanel, GWT 1.33, 1.4.10, 1.59 and 1.4.60

[semiosys]

I was using the LoginPanel with sucess with GWT-windows version 1.33.
Then I've updated for GWT 1.4.10 : I've also updated the GWT-Stuff
library : it was still working well.

I gave a try with GWT 1.4.59 and now the GWT 1.4.60 : I've got a balnk
screen instead of the login panel.
Is this normal ? Should there be a fix for GWT version 1.4.60 ?

Thanks,
Elie