I am running Tiger 10.4.9. on a MacBook Pro. After latest update I noticed that I couldn't copy any files from a DVD I burned back to my hard disk. I can't drag and drop from finder and can't do copy and paste either (there is no paste on context menu). This is really bad, because I take backups on DVDs and then need to get the files back on my HD later. Now I just noticed that I can't copy files from my USB stick to my hard drive anymore either. This is really weird and is making my work impossibe. Any idea what could the problem be and how could I solve it? My boyfriend seems to have the same problem on his MacBook. Restarting doesn't help. Many thanks for your help!