access help

Hey guys, just a quick question since i m fucking around with that shizzle already for half an hour at work.

I got ms access 2k7 and got a database table.
When i now create a form about that table it already shows me a textbox for every datatype.
Basically thats what i want but somehow in the development mode those boxes are coupled together.
When i want to change the size of one of the boxes, it changes the size of every box.
is there some way to decouple those boxes?

thx in advance