Cant backup ipad, please read

Question

I wish to upgrade to ioss 5. I play infinity blade, and i have red that the game is saved, and transfered back to ios 5. To do this i have to backup, but I CAN'T.
Everytime i want to backup i see the massage: itunes could not backup *******iPad. The backup cannot be saved on this computer. I havent backed up in a long time. I've thried everything.
DELEATE EXISTING BACKUP,
DELEATE THE BACKUP FILE IN THE BACKUP FOLDER,
USE A NEW CABLE,
USE A NEW USER ACCOUNT,
RESTART PC AND HARD RESTART THE IPAD,
REINSTALL ITUNES,
RESET THE LOCKUP FOLDER,
ENCRYPT BACKUP,
DELEATE PHOTOS,
DELEATE VIDEOS,
MAKE SHURE I HAVE ENOUGH DISK SPACE,
WAITED FOR TOMORROW,
DOSABLED THE AUTO SYNC...
Now it sometimes seas, that the device cannot start the backup, or that it cannot load something from the sync server........
PLEASE HELP ME.
Thanks

Answer 1

I am in a similar start only I am attempting to backup to a Mac. The ipad used to backup just fine, until the
update to IOS of last week. Apple support has not been helpful at all. They would not listen and kept giving
me instructions as to how to work around on a PC.
What I have tried is:
1. rebooting everyting and disconnecting all peripherials from the mac
2. deleting the lockdown files
3. deleting all old backups
Still fails
Try backing up to a windows system, after 18 hours I gave up as it was still "working" with no progress indicated.
I tried someone elses mac. I wanted 3 hours and the backup still hadn't completed and the person wanted their mac back.
I have 22GB of free memory on the ipad and 200GB+ free disk space on the mac.
The only solution offered by apple "support" was to reset the ipad and re-install all my apps. I really don't want to do that as backups just quit working and this would be the 4th time apple has had me do this. It takes lots of time
to get everything reconfigured again.
Anyone have any new ideas as to what to try?
thanks!
tm