MCUI32.exe- No Disk Message

NAV 2008

Vista Home Premium 32 Bit with Vista Service Package 2

 

Just starting yesterday (7/8/10) when I go to check check Recent History in my Norton Security history, When I click "view Histort" I'll get a pop up that says

MCUI32.exe-No Disk

There is no disk in the Drive, please insert a disk into drive E ( the DVD drive)

 

now the history will pop up anyway, just get the strange message

I rand scan with NAV2008 and malwarebytes, all clean

 

any sense on why it would say I need to insert disk when I'm just looking at history?