ActiveX download problem

I need some help distributing my ActiveX control. For most machines, my control will work, however, on some machines it will not, and when I check the log, this is what I get...

*** Code Download Log entry (21 Feb 2002 @ 16:53:35) ***
Code Download Error: (hr = 800c0300) Unknown Error!!
Operation failed. Detailed Information:
CodeBase: http://ericks/testload/client/MasterProject.cab
CLSID: {D061B421-0E10-404E-BA69-D8779430B4CC}
Extension:
Type:

LOG: Item MasterProject.ocx being processed.
--- Detailed Error Log Follows ---
LOG: Download OnStopBinding called (hrStatus = 0 / hrResponseHdr = 0).
LOG: Item MasterProject.ocx being processed.
LOG: Item sysmon.ocx being processed.
LOG: Item objsafe.tlb being processed.
LOG: Item msado15.dll being processed.
ERR: INF Processing: Failed (800c0300) processing: msado15.dll
. Cannot get primary/default language!LOG: URL Download Complete: hrStatus:0, hrOSB:800c0300, hrResponseHdr:0, URL:(http://ericks/testload/client/MasterProject.cab)
LOG: Reporting Code Download Completion: (hr:800c0300 (FAILED), CLASSID: d061b421..., szCODE:(http://ericks/testload/client/MasterProject.cab), MainType:(null), MainExt:(null))

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Any help would be greatly appreciated, I'm pulling my hair out trying to find a fix, all the paths are correct and everything should work, it works on several machines, but there are a handful that it won't work on.

Thanks in advance,

Jacob 438