I'm on Vista 32-bit, and yeah I'm using The First Decade.
Renegade has worked with this setup for more than a year now. Previously I had it on an XP desktop, and the original CD. Circumstances forced me to get Vista and TFD.
I did a quick search of these forums a minute ago but couldn't find anything on this, apologies if I missed anything.
Any help is appreciated. I tried to get on to RA2 online a few minutes ago and this is equally inaccessible with a similar error message.
Here's a screenshot for reference:
