I have calmed down a little since my post yesterday which pretty much reflected the way i was feeling about my son's X Box 360 ongoing reliability problems. Since the last post i have done some surfing (on the net, not the sea!) and found that yet again this is a widespread fault, and as i mentioned earlier it appears that the fix is limited to either sending the box back to Microsoft for an out of warranty repair (console is more than 1 years old and the 3 year warranty only covered the RROD fault), or i have to go and buy a "donor" console that has been put up on Ebay, then use its working (i will check that it does!) DVD/CD drive, and stick it in ours to cure the problem...hopefully :-).
As i post this i am just waiting to hear from a couple of local Ebay sellers to negotiate a donor machine....i will let you know how i get on.