my explorer's been acting very crazy lately. i open windows explorer, try to browse a few folders, then it just starts searching for files in those folders with the green progress bar moving slowly even if the folders are on the same physical drive. finally it will show the contents like after 5 minutes. then if i wanna browse a network folder it just hangs. first few times, it was fine after i restart. now restarts do no good as well. anyone with the same issue?