Keyboard doent work

[aprillia99]

ok Im using Mighty mikes ROM6 but this problem has happen on other ROMs as well. when i try to write a txt message ill slide the keyboard out to type but it doesnt work, im typeing but nothing is appearing on the screen and the keyboard back light fades and shuts off like im not hitting anything. every now and then if i wait long enough is will start to appear but most of the time it doesnt.
Any idea on why and how i can fix it?

Thx in advance