More partition problems

I have tried installing 11.1 twice now and still have partition issues. The first time I let the installer create my partitions from 145GB of free space. The install and updates went through with no problems. Afterwards, I tried doing a partition backup with Acronis 11.0 (latest build) and received partition errors preventing me from doing the b/u. Next 11.1 install I created partitions myself and all was well again until trying the backup. I’ve been making good backups of XP and Opensuse 10.3 with no problems at all, and have restored partitions using these images. Any ideas how to solve this? I’ve restored my partition back to 10.3 and may wait for the next release.