So, boredom set in........ I had done all the Libre/Open Office stuff ages ago and got to wondering about other options.
I use SoftMaker Office 2013, which I bought for a few €s on an offer. It is just like MS Office and opens just about anything. I have now found a free version here:
http://www.freeoffice.com/en/ it also opens many file formats including open office formats. It will also save files to many formats including .doc .odt (open office) unfortunately it does not save as .docx, the new file format in Word, but that is not a deal breaker.
John, if you continue to have problems with OpenOffice or simply get lost with the instructions to fix it then FreeOffice would be well worth the few minutes to download and install it.