I had this same problem earlier this year; I ended up rewriting the plugin code. It doesn't look like John Brien is maintaining the plugin -- maybe someone can take over and add the "no arrows" feature. (I've never maintained a plugin!!) Here's what you need to do.
1. In the plugin folder wordpress-nextgen-galleryview/GalleryView/images/themes copy make a new folder called "noarrows" and copy four blank 1x1 gifs into it -- name them to match the files in the other themes.
2. In the file "nggGalleryView.php" add this code at line 415:
<option value="noarrows" <?php echo ($data_ngs['navTheme'] == "noarrows" ? "selected":"") ?>> No Arrows </option>
3. In jquery.galleryview-2.0.js find & replace (at line 919) this code:
if(filmstrip_orientation=='horizontal') {
strip_size = opts.show_panels?Math.floor((opts.panel_width-((opts.frame_gap+22)*2))/(f_frame_width+opts.frame_gap)):Math.min(item_count,opts.filmstrip_size);
} else {
strip_size = opts.show_panels?Math.floor((opts.panel_height-(opts.frame_gap+22))/(f_frame_height+opts.frame_gap)):Math.min(item_count,opts.filmstrip_size);
}
and replace it with:
if(filmstrip_orientation=='horizontal') {
if( opts.nav_theme=='noarrows') { //MH addition, this line and next two
strip_size = opts.show_panels?Math.floor((opts.panel_width+opts.frame_gap)/(f_frame_width+opts.frame_gap)):Math.min(item_count,opts.filmstrip_size);
} else {
strip_size = opts.show_panels?Math.floor((opts.panel_width-((opts.frame_gap+22)*2))/(f_frame_width+opts.frame_gap)):Math.min(item_count,opts.filmstrip_size);
}
} else {
strip_size = opts.show_panels?Math.floor((opts.panel_height-(opts.frame_gap+22))/(f_frame_height+opts.frame_gap)):Math.min(item_count,opts.filmstrip_size);
}
4. I also changed the plugin so that if there's only one image it wouldn't add thumbnails:
In nggGalleryViewSharedFunctions.php
after line 118
$final = array();
add
$pcount = count($pictures); // count the number of photos so thumbnails won't show if only one photo -- MH
at line 160 replace
$out .= " show_filmstrip: " . ($showfilmstrip?'true':'false') . ",";
with
` if ($pcount >1) { // new "no arrows code -- MH -- that doesn't show filmstrip if only one photo
$out .= " show_filmstrip: " . ($showfilmstrip?'true':'false') . ",";
} else {
$out .= " show_filmstrip: false,";
}`
Hope that all works for you! I can also email you the files if you need them.