blobhead 10 Posted June 23, 2009 Hi, I've been running the version of ArmA 2 that was on the DVD without issue (V1.01) but after installing the V1.02 patch the game refuses to start, instead popping up a dialog box immediately with an error about "d3dxmatrixmultiply" not being present in a directx9 library (sorry I can't be more specific as I am not at home at the moment) I've tried uninstalling and reinstalling - but same thing happens - V1.01 works fine, but then I put the V1.02 patch on and get this error. I'll try updating my NVidia drivers tonight and I'll post additional/more specific information about my system should that not resolve it. Thanks in advance for any help. Share this post Link to post Share on other sites
[GLT] Legislator 59 Posted June 23, 2009 d3dxmatrixmultiply is a Microsoft based file. Be sure to have the latest Dx9 installation. Maybe something got deleted during patch installation. So far I don't think it has anything to do with the Nvidia drivers. Share this post Link to post Share on other sites
blobhead 10 Posted June 23, 2009 Thanks a lot for the reply. Yes, 'D3DXMatrixMutiply' is a DirectX function contained within one of the DirectX dll's. What I don't understand though is why would V1.02 patch cause the DLL link to this function to screw up? and yet, reverting to V1.01 corrects the issue? I'm running Vista (32-bit) which comes with DX10 pre-installed - I presume all DirectX versions contain all previous versions (being a COM library) so I'm not sure whether I can do anything as regards the DX9 installation? Does ArmA2 use DX10 at all? or is it all DX9? Thanks again. Share this post Link to post Share on other sites
WinterMJ 0 Posted June 23, 2009 Vista sometimes fails to install all the needed DX9 files for backwards compatibility. Try downloading the latest Web Installer and running that to see if it plops any extra files on your system: http://www.microsoft.com/downloads/details.aspx?FamilyId=2DA43D38-DB71-4C1B-BC6A-9B6652CD92A3 Share this post Link to post Share on other sites
blobhead 10 Posted June 23, 2009 Thanks, I shall give that a go when I get home... Share this post Link to post Share on other sites
mattsimis 10 Posted June 23, 2009 d3dxmatrixmultiply is a Microsoft based file. Be sure to have the latest Dx9 installation. Maybe something got deleted during patch installation. So far I don't think it has anything to do with the Nvidia drivers. Patch 1.02 definately breaks "something" with DX9 support: http://forums.bistudio.com/showthread.php?t=75609 http://forums.bistudio.com/showthread.php?t=75560 Im going to try moving d3d9.dll from other installs into the game directory to see if I can get a working game again. Share this post Link to post Share on other sites
[GLT] Legislator 59 Posted June 23, 2009 1. No ArmA II is a Dx9 game 2. Dx10 does NOT contain all previous Dx9 files! So install Dx9 at all costs! Set a system restore point or make a backup of your system. Share this post Link to post Share on other sites
blobhead 10 Posted June 23, 2009 Ok - it's looking like a definite DX9 install then... thanks for replies. Share this post Link to post Share on other sites
blobhead 10 Posted June 24, 2009 Update: I tried installing DirectX 9 using the normal installer (the one which downloads what's needed) but that didn't solve the issue - neither did installing the latest NVidia drivers. So... what I did next was to get the full DirectX runtime install package and copy the file which was causing the issue (d3dx9_41.dll) over from the cab file in that package to the windows\system32 folder (renaming the one the was already in the windows\system32 folder just in case) - and all of a sudden, it all works! I'm not entirely sure what the issue was as both files seem the same, and I don't know why V1.01 worked, and V1.02 didn't, with the old file (surely they didn't just start using a function as fundamental as D3DXMatrixMultiply in V1.02? and why is this apparently missing in the d3dx9_41.dll I already had?) - who knows, but I'm very happy again now :-) Thanks for all replies! Share this post Link to post Share on other sites
