Custom visual - row selection disappears on calling context menu via right click

Hi,

Since yesterday we are facing problems concerning our custom visual table.

When a user enters a page containing a custom visual he cannot call any drill through via the context menu because after selecting a row, the same selection disappears when calling the context menu via right mouse click.

After hitting Ctrl+F5 this same action works as usual. However only ones, when clicking the back button from the drillthrough page, the table loses it's selection on right click.

Any help would be greatly appreciated.

Frank