DOCUMENT:Q169125 31-JUL-2001 [sms] TITLE :SMS: Bitmap Buffering Causes Remote Control Corruption PRODUCT :Microsoft Systems Management Server PROD/VER:winnt:1.1,1.2 OPER/SYS: KEYWORDS:kbnetwork kbtshoot smsremtshoot kbRemoteProg ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Systems Management Server versions 1.1, 1.2 ------------------------------------------------------------------------------- SYMPTOMS ======== If you use the Remote Control feature to access a client computer running Windows 95 that is using a video card with Bitmap Buffering, like the Cirrus Logic 5446 or the Matrox chipset, the Quick Viewer display will become corrupted. Corruption will include odd colors, screen "droppings," and missing parts of remote windows. CAUSE ===== The display corruption is caused by the Bitmap Buffering feature used by this graphics adapter and driver. The graphics chipset and driver use features like this to enhance the graphic performance in special areas. Bitmap Buffering bypasses the Remote Control Agent, so Remote Control sessions display corrupted information. WORKAROUND ========== To avoid this specific problem, it is necessary to disable the Bitmap Buffering feature. In general, to ensure that the Remote Control Agent can work as designed, it is a good idea to switch off any enhanced features like Bitmap Buffering. Please consult your graphic card's documentation for the necessary configuration. STATUS ====== Microsoft has confirmed this to be a problem in Systems Management Server versions 1.1 and 1.2. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available. MORE INFORMATION ================ For more information on using Systems Management Server's Remote Control feature with either the Cirrus 5446 or Matrox chipsets, see the following articles in the Microsoft Knowledge Base: Q162409 SMS: Remote Control Windows Corrupted with Cirrus 5446 Chipset Q157756 Remote Control Problem with Matrox MGA Millennium PowerDesk Additional query words: prodsms win95 help desk helpdesk logic cl5446 ====================================================================== Keywords : kbnetwork kbtshoot smsremtshoot kbRemoteProg Technology : kbSMSSearch kbSMS110 kbSMS120 Version : winnt:1.1,1.2 Issue type : kbbug ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.