Ghost 12 corrupting PDFs and PSTS

When I run a full backup of my C drive with Ghost 12 and then restore files, the PDFs and PSTs are all corrupted and cannot be read by Acrobat and Outlook respectively. I have the latest patches from LiveUpdate. I cannot find anything on the web or the Norton community or support sites discussing this. Has anyone seen this problem? Anyone have a workaround? P.S. Many other file types work just fine, but it seems all the PDFs and PSTs I have checked are corrupted. I have tried changing the encryption level, but not surprisingly this has no effect. Help Please!!!