ive had this issue and ive resolved it before using this method.
Try this :
Open your FgunZ Folder
Go to the file named config.xml
open via notepad and look for the following lines
<WIDTH>800</WIDTH>
<HEIGHT>600</HEIGHT> This is just an example of what it may look like.
For example if its like this
<WIDTH>1600</WIDTH>
<HEIGHT>900</HEIGHT>
try changing it to a lower number like
<WIDTH>800</WIDTH> <WIDTH>640</WIDTH>
<HEIGHT>600</HEIGHT> OR <HEIGHT>480</HEIGHT>
Hope this helps!
