Sword,
Is there anything you changed on your system? Please ensure that DynamiCube's DataPath exists and you have rights to access it. Also ensure that you saved .cub file with the same DynamiCube version you are using on web. Make sure that security settings in IE7 allow ActiveX controls. Also I would like to recommend you to install new DynamiCube3 3.3.0.1216 version. In this version the original DynamiCube3 SP3 cab and ocx files have now been digitally signed and will now load correctly in IE7. The original SP3 files (build 1215) have been removed and replaced by the this version. You can find it on download page:http://www.datadynamics.com/forums/40/ShowForum.aspx.If this doesn't help could you please send me your .cub file so we can look into this issue together? You can zip it and attach to forum post or send it to dynamicube.support@grapecity.us.com.
Thank you,Andrey T.