Just a little update to my saga. Thought I would have another try and this morning everything was working fine. That is until I tried to copy and paste files to DropBox when, after the usual varied shenanigans, I eventually ended up (how?) with a list of I/O errors citing bad sectors on the new hard drive. OK so must be a dodgy HDD. I'll get that checked.
Left it until I arrived home about 30 mins ago. Thought I would just try again - mug that I am. Turned on, Grub presented etc. Screen stating hard drive being checked. That ended and PC rebooted, noticed that Grub screen did not have the default log in countdown. Anyway, selected Mint and log-in screen presented and seems to be ok.
Launched Chrome, so far so good, then some sites cannot be loaded, then Chrome closes when I hit the back arrow.
Try to relaunch Chrome - 'Mint menu has quit unexpectedly' reload? Ok. Not a good idea! This problem seems to be one that surfaced 4/5 years ago and I cannot find any record of it being reported on Mint 13.
Have to turn off at machine.
Restart PC and it now hangs at the Bios splash screen....again.
Can't even get to into the bios to boot up the HDD with XP on it!
Fortunate to have a Laptop running Mint 11. Lovely Mint 11! Clearly a superior Mint!
PC to engineer tomorrow to get HDD checked again!