Hey, chick...
Open up the skins directory...and locate the skin(s) you're using for your arcade. There are 3 of them...skin_Arcade, skin_global and skin_v3Arcade.
Edit the skin you use by locating the following within the file:
Find (in the <object> tag):
Code:
<param name="menu" value="false" />
Add above:
Code:
<param name="wmode" value="opaque" />
In the same skin file...
Find (in the <embed> tag):
Code:
<embed src="./arcade/{$game['gname']}.swf?tgame=0&pn_gid={$game['gid']}&pn_license={$game['license']}&pn_checksum={$game['checksum']}&pn_domain={$game['domain']}&pn_uname={$game['username']}"
Add after:
Save the file and upload it...overwriting the old file.
This should take care of the issue.