Hmm just done some playing with this...didn't even know it was an issue since my board has always had the box ticked by default.
Anyway....try changing that "echo" line to this:
Code:
echo '<meta http-equiv='refresh' content='$secs; URL=$vboptions[bburl]/holdsession.php$session[sessionurl_q]act=arcade&do=play&gameid=$gameid'>';
That seems to be working for me, whereas I was able to replicate the issue before by unticking the box.
Certainly the syntax was all wrong before.