Hi Dan O and thanks for replying. Yes I can get into safe mode via F8, again it takes about 40 mins to finally boot up.
I've tried uninstalling the download but again recieve error messages saying the previous version is incomplete therefore I'm unable to uninstall this version.
I've had a butchers around the BIOS and can find nothing that jumps out at me.
This is a real head scratcher!
Cheers
Jo