I have been having an error recently that shows up in the 64 bit version of Dimension Pro, but NOT in 32 bit.
This problem happens both in executable and VST Versions, the only difference is that the executable gives me an error "IDS_VST_EFFECT_NAME  not found in text resource file!"
When I try to pull up the program browser it shows no programs.  F5 does not refresh. I could load a program using Load Program... off the file menu.
On the other hand, if I try to load a multisample or wave file, it does not see any, just folders in the directory structure.  In the filter on the Load Multisample browser, instead of seeing file extensions, I see "IDS_MULTISAMPLE_LOAD_122 not found in text resource file!"
 
I have had DP working fine on this machine before, but this issue came from nowhere?  Any idea what could be wrong here?

It seems some configuration information has gone missing.
 
Try updating to the latest version or re-install the version you have.

defrag often and remember to floss.

... and backup.