A four headed arrow is usually the icon used when moving something in certain applications, like photo-editors. Are you by chance running other programs in the background? I recommend turning off any unused background and other applications first and see if this problem still persists. I know in Planetside 2 specifically you can toggle your cursor, but it shouldn't be a four headed arrow. Make sure you are not hitting the toggle key by accident when playing. If I recall correctly the default should be left-alt.