My ipad is unable to create new documents for icloud.

I've had this problem for a while now. I'd like to use iwork in the cloud across all of my devices, as advertised. But at some point after updating to OS 5, my computer and phone syncs perfectly but my ipad doesn't. It constantly says "updating x documents" but never finishes.

I've tried deleting iwork and reinstalling...

turning off icloud on my ipad and turning it back on...

buying more icloud storage just in case...

still not working and also documents I've made in pages/numbers on my ipad have the "arrow" in the top left corner as if it wants to upload but never does. Eventually overtime this document becomes curropt and never works.

I even upgraded to an iPad 3 (from iPad 1) last summer and it has the same problem.

Has anyone else experienced this? I'm currently running os6 with the newest iwork.

Thanks

Dee