Black Path occurence in RDP session

[Arun]

Hai,

I have the following problem, before that my environments are,

Client OS: Microsoft Windows CE .NET 4.2
Server OS: Windows 2000 server with SP4.

Problem:-
Using RDP protocol, the client is connected with Windows 2000 server.
When the users are working with the session, suddenly black color
patches (small rectangular shaped BLACK PATCHES) appear on some part of
the screen. These patches hides/make black colors on the User Interface
elements like Start Menu, Time display, etc ... in the desktop.

This problem occurs randomly. Once I log off the session and re-login,
it disappears.

Is the following can be the Solution:-
Some of RDP registry Entries in the WinCE Platform are,
1. BitmapCacheSize
2. BitmapPersistCacheSize
3. BitmapPersistCache16Size
4. BitmapPersistCache24Size
5. BitmapPersistCacheLocations.

Does these reg entries will have certain impact on the problem ?. Here
my doubt is by suitably using the above reg entries, whether the
problem would be solved ?.

Any help would be appreciated......

Regards,
Arun.

[Vera Noest [MVP]]

Probably, yes. Have you tested if the problem disappears when you
disabled bitmap caching on the client?

_________________________________________________________
Vera Noest
MCSE, CCEA, Microsoft MVP - Terminal Server
TS troubleshooting: http://ts.veranoest.net
___ please respond in newsgroup, NOT by private email ___

"Arun" <arunec...@yahoo.co.in> wrote on 18 jul 2005 in
microsoft.public.windowsnt.terminalserver.protocols.rdp:

[Arun]

Hai Vera,

Thanks for your reply..

Do you mean that the problem would disappear when bitmap caching was
disabled ?. We need to test it.

Actually there is NO problem when the user logs in.
But, after 2 Hrs of continuous working in the session the Black Patches
begin to appear in the UI elements. Then the user needs to log off and
relogin.

Regards,
Arun.

[Vera Noest [MVP]]

I don't *know* if the problem disappears when you disable bitmap
caching, but I feel it is likely. What you see is probably some
sort of problem with the cached bitmap data.
You can also test it by enabling bitmap caching, but manually
empty the cache as soon as the problem appears.

_________________________________________________________
Vera Noest
MCSE, CCEA, Microsoft MVP - Terminal Server
TS troubleshooting: http://ts.veranoest.net

*----------- Please reply in newsgroup -------------*