br tag auto formatting with shortcodes

The shortcodes are now putting br tag in automaticaly so the button appears half way down the page. now i have updated wordpress and s2members at the same time so i dont know what one caused the problem as its been working fine for years. http://www.shaolin-warriors.co.uk/fan-club/

i have tried everything, pasted as plain text, used wp filters to turn off auto tags, you name it i have tred it and still no fix.

Anyone else had this problem?
Thanks

I have the exact same problem.

Hello guys,

I suggest you follow this post:
http://www.s2member.com/forums/topic/specific-post-page-button-adds-whitespace/

Jason is currently aware of that post, so you can post your problem there.

Hope this helps. :)