We have 2 WinXP Pro machines, along with a ton of NT4 and Windows 2000 workstations. All of these connect to a Netware 5 file server. On two of the WinXP stations we sometimes get "File Access Denied" errors when trying to delete files from windows explorer. Sometimes trying to delete the file again right away works, sometimes it doesn't. All of the NT4, the Windows 2000 and 1 WinXP work perfectly without this error. Comparing the network client setups of the WinXP boxes reveals no differences.

Any ideas?