kaled - 12:21 am on Nov 6, 2006 (gmt 0) Kaled.
Have you tried scandisk?
Have you tried deleting from the command prompt (using the rd command)?
Have you tried deleting from the command prompt using the short filename?
Have you checked the folder's properties? Is it marked readonly? Does it have zero size? Is it shared?
What file system is in use (e.g. FAT32 or NTFS)?
What error message is displayed when delete fails?