Didn't change anything, and tried reinstalling VoxATC X and now when I 'Enable' Vox, I get the first few little dots after the "Initializing" and there it sits. I can use the Flight Plan trainer and I believe my Text 2 Speech functions in Vista are still working. Any suggestions?

Your antivirus or software firewall may be interfering since Simconnect uses the TC/ICP. Make sure the indexer was allowed to run after re-installation or after any changes to airport facility information (AFCAD's), traffic programs, scenery or aircraft installations. You can check on the antivirus/firewall by disabling it when flying and see if VoxATC starts up normally. If it is the problem your antivirus may or may not have provisions for ignoring some programs. I am using NOD32 and had to set it to ignore anything using Simconnect to communicate with FSX.