Vista - Trying to add Hotmail attachment, no files?

Hi,

I use Hotmail.com for email.

When I type up an email to send and want to include a file from my computer, I click on 'Attach', then search my computer for my Documents folder. But it shows empty. I wait for 30 seconds or so for files to show, but they don't and I close the attachment attempt. I do this maybe 3 or 4 times, and after several minutes, all the files in my documents folder show up and I can pick out and include my attachment. This goes not only for my documents folder but any other folder on my computer that I'm trying to choose a file to attach.

Is it the indexing on my computer that goes to work and delays everything? This sometimes happens (rarely) even when I'm not sending email. I will open 'Computer', then C:, then 'Documents', and no files show immediately.

Thanks
Mike

I have:
Dell XPS 630i
Vista Home Premium 32bit
Intel Duo CPU E8500 3.16GHz