Windows remembers 400 folder settings. When that number is reached some settings aren't retained any longer. You can change this to 8000 by adding this edit to the registry.

1. Copy the following (everything in the box) into notepdad.

QUOTE
Windows Registry Editor Version 5.00

[-HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\BagMRU]
[-HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\Bags]

[HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell]
"BagMRU Size"=dword:00001f40

[HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam]
"BagMRU Size"=dword:00001f40

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"NoSaveSettings"=dword:00000000

2. Save the file as folder8000.reg
3. Double click the file to import into your registry.