Problems with the keyboard and floppy

A little problem with WINFELLOW- alpha version:
everything is working correctly, but it doesn't accept a keyboard input during a game. For example: in "The Secret Of Monkey Island", when I want to save my game, i'm able to write the name of the savegame, or choose the previous savegame.
After this, the only drive recognized by the game is the DF1, so i must exchange the floppies only there, and when i want to make a new saving (for which i must press F5), nothing happens... it doesn't accept any input from the keyboard.

And there's another thing:
now the emulator stucks when loading a game (Speedball2 Brutal Deluxe) that in the past loaded without problems, even if i haven't changed the configuration. I tried to re-install winfellow, but without luck.
What can i do?

Thanks