The MTR's for XE don't specify which version of adobe is supported anymore. We are still on XE and are using 4.0, 5.0 and 6.0. I think some people still have 3.0. We had a problem with 7.0 that I report to Oracle. After a .pdf is attached and you go back into media attachments the .pdf is already open and appears very grainy. Oracle was able to reproduce the problem but said it was an adobe problem and that I should contact them. I suggested to them that they probably have more clout with them than we do. I think the case is still open.
Patty