Post Installation of SP1, WMP11 crashes when I connect Pen drive

Hi All,

I installed Service pack 1 on my Windows Vista, and since then when I am
running Windows Media player 11 it works abosolutely fine but as soon as i
connect my pen drive to the computer the WMP11 crashes in few seconds Error
message "Windows media player not responding".

I click on the option which says click here for windows to find online
resolution then it returns back saying there is not solution as of now.

And when i connect the pen drive and then start Windows media player it does
not start, it closes down as soon as it opens.

I have tried reinstalling USB root hubs.

When i connect Pen drive while running WMP11 i get a message at left bottom
corner of WMP11 which says "Synchronizing portable device" and then wmp11
crashes.

Please help me solve this problem.

Thanks in advance

Regards,

Khan