I'd ride 'er
Being one of a handful of people that worked on both flight controls and engine management I'd like to point out that you are far safer flying on one of these crates than having a shit on your toilet. (A statistical fact - find your own sources). Of course you could live life on the edge by having a shit on the plane but I find these on-board toilets are places to avoid - especially on the cattle class that I tend to travel.
From memory - the software on the flight computers was originally generated by three software teams and run on different compilers and different hardware, but this level of redundancy was reduced at a later stage and a single software team was used. The level of safety from using independent teams was calculated to be insignificant, given that everyone was coding from the same design.
Basically - if the design has a flaw then it was going to be on every computer - so if there was a conflict then it was likely due to a hardware fault or a compiler fault - that part of the computer would then be reset.
There may well be a fault in the design - which was very very well tested. In the end - when the 777 first came out - I wouldn't fly on it - but there again I wouldn't take the first flight on any plane. Let some other idiots try it out first. But it has been flying for quite a while now - and has an excellent safety record. It is also extremely comfortable to fly on - so get out of your extremely dangerous cars and toilets - and get on the 777.
However, for safety reasons, NEVER use the toilet on a plane, unless sitting next to Paris Hilton and she wants to sign you up to the mile-high club.