jQuery Grid Plugin - jqGrid

I have no problem adding a context menu to the grid.  My problem is if a user right clicks on the grid to bring up the context menu it wont go away unless the user selects an option on the context menu or right clicks on another row which in turn brings up another context menu.  What i want is for the context menu to go away when a user left clicks on another row.  An example of my problem can be seen here: http://www.hard-bit.net/files/.....tMenu.html

If you right click on a row and then click on other rows the context menu remains open. 

I've tried sevral different context menu plugins and I have the same problem with each.

The JQuery plugin found here: http://abeautifulsite.net/2008...../ has a destroycontextmenu event that i tried calling from the onRightClickRow event before a new contextmenu is loaded but that still didn't fix the problem.

Has anyone encountered this problem?  Is there a better context menu plugin I can use?

Any suggestions would help.