Full screen display missing when ps2 jopad is installed.

Some help needed please.

I recently instaled my Playstation joypad with an adaptor on my PC and all is working fine but ever since then i have lost my full screen setting and now i only get a small display screen in the top left corner with some odd coloured lines to the right of it. I have tried most things in the display settings menu but nothing works, worked ok with the old keyboard settings.

This is the version of swos i am using www.hotlinkfiles.com/files/2436140_8yqjq...SOnline2008-2009.exe

Thanks Jon.