Hello, I am new to the forum, but I did a search on this topic and found information (MSKB 170086 and checking the folder options) which I have already tried. Still no luck. When I review the entries in the registry, I cannot find any problems. There aren't any problems with nulls or quotation marks, that I can see. ActiveMovie File Extensions Value does not exist. I have not tried deleting everything except the default, because the default [systemTray] doesn't exist and I don't know how to create it. This happened many years ago and think I recall something wrong with SB Audigy (I have a Dell), but can't recall the particulars. I corrected the problem and it just now started again. I failed to document it last time, but I won't this time! Any help will be very much appreciated. (The wait time before the folder opens in huge.) Thanks