Here is the problem. For some reason when you open or save it is changing the formatting. The [HKEY...] lines should be all the way to the left. The following lines should be 2 spaces in. Like this:
[HKEY_LOCAL_MACHINE\Software\Microsoft\Terminal Server Client]
"MapVirtualKeyLib"="\\Windows\\MvkLib.dll"
"CEConfig"="Maxall"
"BitmapPersistCacheLocation"="\\Temp"
[HKEY_LOCAL_MACHINE\System\StorageManager\AutoLoad\ FilterFsd]
"BootPhase"=dword:00000002
"RootPath"=""
"FolderName"="FILTERFS"
"MountFlags"="1"
"LoadFlags"="1"
"Paging"="0"
"Dll"="filterfsd.dll"
So, try to figure out why this is gettng changed. Good luck
Edit: Well that didn't show up in the post for some reason so maybe that isn't the problem. Find the key that is in the error and post it. Make sure Word Wrap is not on.