Problem viewing tasks in UWL

Hello Gurus

I'm havin g some trouble in UWL since the installation of SP29. When a certain user logs on its session, can view all the tasks in the inbox, but as all you know, there is some batch process that refresh the view every certain time. So, when this happens, all the tasks gone and the inbox is empty. To view again the tasks, the user needs to click in some other tab from the menu, and then return to the tasks tab to view them again. And when the batch process is executed, the problem occurs again. The odd thing is this happens only with a certain user.

Any ideas?

Regards IA