Cocoa WebView scrollbars won't disappear

I load the webview and set allowsScrolling to NO, but webview still shows scroll bars... Banging your head on your computer hurts a lot more now that MacBooks have sharp metal edges.

My code:

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
    // Insert code here to initialize your application
    NSString *webFolder = @"file:///<WebFolderPath>";
    [[[productWeb mainFrame] frameView] setAllowsScrolling:NO];
    [productWeb setFrameLoadDelegate:self];
    [[productWeb mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[webFolder stringByAppendingString:@"webpage.html"]]]];
}

I even setup the frame loading delegate to report about the scrolling status:

- (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
{
    NSLog(@"Scrolling %@",[[frame frameView] allowsScrolling] ? @"Allowed" : @"Not Allowed");
    [[frame frameView] setAllowsScrolling:NO];
    NSLog(@"Scrolling %@",[[frame frameView] allowsScrolling] ? @"Allowed" : @"Not Allowed");
}

Which still gives me the unhappy:

2010-08-24 15:20:09.102 myApp[30437:a0f] Scrolling Allowed
2010-08-24 15:20:09.104 myApp[30437:a0f] Scrolling Not Allowed

And yet the scrollbars continue to show! Hopefully, it is something stupid I'm doing as I don't want to get any more blood on my laptop.