I'm sorry to hear that Aka.
I was hoping that they would work something out for you.
Keep weight shifting..!! That's the most important thing we can do.
I know we sometimes get carried away and forget, for me it's especially so when I get on the computer.
Have you tried a high profile roho?
Like Wheelz says:
"Get a high profile Roho Quadtro cushion if you can acquire one." and give it a try.
edlee gives some good advice here as well:
QUOTE (edlee @ Apr 29 2009, 11:25 AM)

I've mentioned this before, about the subject of "staying off of it",,, that is,, I wish I could. I've found that the second best thing,, and obviously a lap or more back,, is to use the roho.
Any kind will do, but the tall one would, I think, be a better option. But not just using it, but modifying it slightly.
What I have done, successfully, is to locate the cells directly below the problem spot, then defate them by pushing out the air, and keep them deflated with the use of rubber bands or tape. You will only need to do this to one or two cells to get what you want,,, may not be perfect,,, but better than a sharp stick in the eye...
This removes the possibility of pressure without the need to lie in bed, or in my case,, to remember to do my weight shifts when I should.
Hope this helps.
ed
Same advice a friend of mine who has been in the chair since 1983 has given to me in the past. He swears by the roho. The key to the roho is proper inflation. If it is over or under inflated it is going to give you sores too.
In my van I use a low profile roho on the seat when I drive and so far have not had any problems.
I hope and pray that you will be able to work something out that works best for you. I wish you the best my friend. I know what pressure sores are like as I have been laid up with them before. Not to mention that if un-cared for can be very dangerous...
If we do get a sore... we need to Stay off it till it is healed.

T.