Turned out I had to reinstall Report Builder, but your comment put me on the right track.
Thanks
Colin

Seems I haven't quite got there. The install ran fine with the additional files, but I now get this error.

Thanks for that Yeray, that fixed the problem. It probably would have saved a lot of angst if those files had been added to the installation program.
Anyway, all up and running now so I appreciate the help.
Regards
Colin

Further to my first post. I have now tried to uninstall this version of teecharts, but now I can't compile my programs as the original teechart that came with XE6 has of course been removed and I am left with incompatibility issues.

I have just purchased teechart standard VCL for Delphi XE6 Enterprise and downloaded Build 2015.15.150420 full off-line version. I also get the messages that GDIPAPI and GDIPOBJ files cannot be found, causing the install to fail. It seems that this is a known and ongoing problem which has been aroun...