usb stick access lockup under leopard

Just another bug report for everyone:

While trying to access a spreadsheet file on my 8gb memory stick, Finder and the Spreadsheet program kept locking up while I was trying to open the file. I looked up at the top right corner and it seems that spotlight was indexing the disk. The simplest solution was just to wait for it to index (which only took a few minutes) and then I could access the files. That is all.