I brought my computer into my house to attach a xbox controller I had problems getting on the internet from my shop with xp so I set it up next to my router and finally got the right files to download I set up the controller but when I brought my computer back into my work space and reconnected it is where my problem begins it jogs to the work piece, and then everything slows down the z barley moves the x and y axis also move very slowly.  Ive tried everything with re running the motors they seem to run fine with no g code but as soon as I load something and press start it does the same thing.  Ive tried all youtube help but can't seem to figure it out or correct what's happening is it possible that the pin in the parrell ports broken should I replace the cable. or is there something I have overlooked