Well I found the MTKFLASH proggy and the .bin file (5s5a.bin).
I had a win98 boot disk.
I put the MTKFLASH exe and the bin file onto my C drive (fat32).
Used the boot floppy, ran the backup comand - worked OK, created a file 512k long (which puzzled me because the new firmware was 256k - maybe someone can explain why!!!??).
I did NOT reboot at this point - should I have ?
I tried the WRITE to flash command, lots of message whizzed past but the last few screens were FAIL messages.
I rebooted my PC and the LiteOn drive booted up OK this time, and could read CDs.
Great I thought - so I put all the kit back inside the case and screwed it shut.
Rebooted the PC - SAME PROBLEM - the LiteOn drive was stuck again!!! button not responding - BIOS can’t see it!!!
In the end I opened up my PC (again) and tried all sorts of stuff, to no avail.
I then thought about what I had done the first time it started working - the only thing was NOT have the drive powered up for 30 minutes.
I powered down my PC and unplugged from the mains power.
After 10 minutes a powered all back up and the drive worked OK, I went into windows and successfully burned a CD!!!
I haven’t powered off my PC since then, hehe, has ANYBODY heard of this before ???
Thanx for the replies by the way guys.
(Although I found out that the jumper trick is for earlier models only!)