Initially had some problems with trying to read/write data to card, but I think it's more likely to have been the card reader/writer. Using different SDHC USB stick, re-formated (not quick) then tested card now functioning OK, see results below.
Warning: Only 15250 of 15251 MByte tested.
Test finished without errors.
Writing speed: 10.8 MByte/s
Reading speed: 17.3 MByte/s
Inserted into Nokia X7-00 Working OK. One star removed as it's cheaper today then when I bought it last week !!!!