I had my GF4Ti4800 card installed and running and then I installed the Omega drivers. The result was less than I had hoped for and was attempting to uninstall the Omegas and reinstall the Gainward drivers when I got an error #0X80070725 "Incompatible version of the RPC Stub - installation aborted!" message. I have tried everything I can think of, including going back to my old GeForce2 card. Nothing will install now - same message. Used detonator destroyer, and then tried Driver Cleaner for Nvida, still no go. Any ideas?Any help appreciated!Dave

Dave,Read on and see if this helps:"Incompatible Version of the RPC Stub" Error Message with the InstallShield ProgramThe information in this article applies to:Microsoft Windows 2000 Server SP1Microsoft Windows 2000 Server SP2Microsoft Windows 2000 Advanced Server SP1Microsoft Windows 2000 Advanced Server SP2Microsoft Windows 2000 Professional SP1Microsoft Windows 2000 Professional SP2Microsoft Windows NT Workstation 4.0Microsoft Windows NT Workstation 4.0 SP1Microsoft Windows NT Workstation 4.0 SP2Microsoft Windows NT Workstation 4.0 SP3Microsoft Windows NT Workstation 4.0 SP4Microsoft Windows NT Workstation 4.0 SP5Microsoft Windows NT Workstation 4.0 SP6aMicrosoft Windows NT Server 4.0Microsoft Windows NT Server 4.0 SP1Microsoft Windows NT Server 4.0 SP2Microsoft Windows NT Server 4.0 SP3Microsoft Windows NT Server 4.0 SP4Microsoft Windows NT Server 4.0 SP5Microsoft Windows NT Server 4.0 SP6aThis article was previously published under Q321915 SYMPTOMSWhen you install a program that uses the InstallShield program, you may receive the following error message: Unhandled ExceptionError: 0x80070725Description: Incompatible version of the RPC stub.Setup will now terminate. CAUSEThis issue may be caused by any program that installs different versions of the Oleaut32.dll, Olepro32.dll, Asycfilt.dll and Stdole2.tlb files (and possibly others). This may create a mixed file version environment with files that are not compatible with each other. RESOLUTIONTo resolve this issue, use the appropriate method. Microsoft Office 2000 or an Office 2000 Component Is Installed on Your ComputerIf Office 2000 or or an Office 2000 component is installed on your computer, obtain and install the Office 2000 Service Release 1 (SR-1). For information about how to do so, please visit the following Microsoft Web site: http://www.microsoft.com/office/previous/default.htmMicrosoft Office 2000 or an Office 2000 Component Is Not Installed on Your ComputerIf Office 2000 or or an Office 2000 component is not installed on your computer, obtain and install the Mcrepair.exe tool. To do so, please visit the following Microsoft Web site, save the Mcrepair.exe file to the desktop, and then run Mcrepair.exe: http://download.microsoft.com/download/msn...us/mcrepair.exeRestart your computer after you install Mcrepair.exe. MORE INFORMATIONOffice 2000 SR-1 and the Mcrepair.exe tool both update and re-register the following files with the following file versions: Asycfilt.dll (2.40.4515)Oleaut32.dll (2.40.4515)Stdole2.tlb (2.40.4515Olepro32.dll (5.0.4515)For additional information about the Mcrepair.exe tool, click the article number below to view the article in the Microsoft Knowledge Base: 259737 INV: Invalid Page Fault in OLEAUT32 When You Quit Microsoft Internet Explorer For additional information about the error message that is listed in the "Symptoms" section of this article, please view Q105810 in the InstallShield Knowledge Base: http://support.installshield.com/kb/view.a...ticleid=Q105810Also, you Dl'ed and installed the right driver for the OS your using correct?This may also help...Don't know if it will SYMPTOMSWhen a program calls the IEnumGUID interface (such as a call to the Next method), the following error 0x80070725 error message may be generated: Incompatible version of the RPC stub. RESOLUTIONA supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:http://support.microsoft.com/default.aspx?...;EN-US;CNTACTMSNOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.The English version of this fix should have the following file attributes or later: Date Time Version Size File name Platform ------------------------------------------------------------ 05-16-02 11:46 6.0.2600.45 100,352 Actxprxy.dll Intel Bobby

Thank you, Bobby, for the reply. I will try the solutions you you so kindly provided. I forgot to mention that I am running Win98SE but I do have MS Office 2000 installed. I notice the bulletin is not specific to 98SE in the MSOffice situation, but I will dnld service pack anyway.Dave

What I thought was going to be a major crisis and possible expense turned out to be a simple download! Thanks to you, I can get some sleep tonight!Dave

DaveGlad I could help. :)Bobby