If you want comments on your partition layout just post here the output of

Hi saikee,

Please see screenshot below showing current partitioning. Took shot shot of disk in disk utility as well (more for my benefit and other 'newbies').

Interested to hear what you think - thanks!

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You can use fdisk (command "sudo fdisk /dev/sda") to correct the partition order. Never bother with this myself but I remember there seems to be a function inside to do just that. After invoking fdisk it will tell you tp get help is to press "m" at the terminal and the available functions are then listed.

You have 4 primaries now and used up sda2 for the extended partition. Inside it there is only on logical partition sda5 using up the entire space.

That partition table is healthy and has no problem with any PC operating system.

Thanks again for your help - as time goes on, I'll slowly get to grips with the system.

Cheers.