I am currently running Adobe Reader 9.4.0 on a fully patched Windows 7 professional 32-bit machine. From the Adobe website I have tried to download and install Adobe Reader X with both Internet Explorer and Firefox. Once the download is complete and installation appears to start I get two message boxes:
Error 2503. Called RunScript when not marked in progress.
Error 2502. Called InstallFinalize when no install in progress.
Adobe Reader X is not installed and I am left with Adobe Reader 9.4.0.
If I try to uninstall Adobe Reader 9.4.0 I get the same messages.
Any suggestions?