Well guys, thanks a lot for your helpful comments, with them i believe i have found the complete solution :) I been watching my armada 1750 idle for 10 mins now without the black screen of doom!!!!
This is how i sorted it from start to finish (a nutshell guide if u wish!)
1) download this file:
http://h18007.www1.hp.com/support/files/armada/us/download/8093.html
save it somewhere on your laptop say c:\.
2) format a floppy disk. you will need it as the above file when run creates a bootable setup where you configure the hibernation settings.
3) run the file you downloaded from the c:\ directory you saved it in.
Follow the onscreen instructions inserting the floppy when asked.
4) reboot with the new boot floppy.
5) select run computer setup from the options displayed when the floppy boots.
6) click the system features icon.
7) clock power management tab
8) disable higernation and under the battery conservation tab click custom. next click the custom conservation tab and set the options to 0. Press ok when complete.
9) Exit saving changes.
Your problems should now be sorted although battery run times will prob decrease. Still, having 2 batterys in the lappy will still give you plently of run time!!!!
Let me know how you get on,
Many thanks,
Marty