title: IkImageBrowserView Error
body: <p>I have an IkImageBrowserView instance which used to show picture in file,in my app.
  Everything ok but replace it with another view.</p>
  
  <pre><code>    2012-05-23 12:37:29.690 test[3595:903] --ImageKit Error: IKCacheDatabase::entryAtIndex - bad index
      2012-05-23 12:37:29.691 test[3595:903] --ImageKit Error: entry #-1 doesn't exist
      2012-05-23 12:37:29.691 test[3595:903] --ImageKit Error: IKCacheDatabase::entryAtIndex - bad index
      2012-05-23 12:37:29.692 test[3595:903] --ImageKit Error: entry #-1 doesn't exist
      2012-05-23 12:37:29.693 test[3595:903] --ImageKit Error: IKCacheDatabase::entryAtIndex - bad index
      2012-05-23 12:37:29.693 test[3595:903] --ImageKit Error: IKCacheDatabase::entryAtIndex - bad index
      2012-05-23 12:37:29.693 test[3595:903] --ImageKit Error: IKCacheDatabase::entryAtIndex - bad index
      2012-05-23 12:37:29.694 test[3595:903] --ImageKit Error: entry #-1 doesn't exist
      2012-05-23 12:37:29.695 test[3595:903] --ImageKit Error: IKCacheDatabase::entryAtIndex - bad index
      2012-05-23 12:37:29.695 test[3595:903] --ImageKit Error: entry #-1 doesn't exist
      2012-05-23 12:37:29.696 test[3595:903] --ImageKit Error: ram manager::bind can't find cache node with uid: -1 size: 44
  </code></pre>
  
  <p>And I make some experiment and found that , this message will not lead the app to crash. And not happen everytime when I replace the browser view with other view.Some time I close the view, the message will also appar.The code under is the browserView item. according the error message, it may caused by cache of image .. but i can't find what's wrong</p>
  
  <pre><code>    @interface ASFileBrowserViewItem : NSObject
      @property(retain) NSImage* itemImage;
      @property(retain) NSString* imagePath;
      - (id)initWithPath:(NSString*)path;
      @end
  
      #import "ASFileBrowserViewItem.h"
      #import &lt;Quartz/Quartz.h&gt;
      @implementation ASFileBrowserViewItem
      @synthesize itemImage = _itemImage;
      @synthesize imagePath = _imagePath;
      - (id)initWithPath:(NSString*)path
      {
          self = [super init];
          if (self) {
              self.imagePath = path;
              _itemImage = [[NSImage alloc] initWithContentsOfFile:path];
          }
          return self;
      } 
  
      - (void)dealloc
      {
          [_imagePath release];
          [_itemImage release];
          [super dealloc];
      }
      #pragma mark require from IKImageBrowserView Protocol
      - (NSString *) imageUID
      {
          return _imagePath;
      }
      - (NSString *) imageRepresentationType
      {
          return IKImageBrowserNSImageRepresentationType;
      }
      - (id) imageRepresentation
      {
          return _itemImage;
      }
      - (NSString *) imageTitle
      {
          return [_imagePath lastPathComponent];
      }
      @end
  </code></pre>