FINALLY !! I have a properly functioning computer.
I got it back on the 12 July and have been using it with no problem since then.
The company decided to exchange the MOBO from
B75H2-M2-1.0-B/K
( whatever that is) to a Gigabyte B75M-D3V-JP.
It now works perfectly, as it should.
Why they didn't do this in the first place I don't know.
Cost them a lot more to do alll the repair work I think
I looked up the first MOBO and it seems to be made in China.
http://detail.zol.com.cn/picture_index_817/index8161676.shtml
This is the Gigabyte
http://www.gigabyte.com/products/product-page.aspx?pid=4151#ov
So it has beeen three weeks and absolutely no problemo.
Yeah !
