Butter fingers,
I used to smoke and there is nothing worse than having a bad day and being out of cigarettes.
I would back up any files you modified (in my case just about everything but the languagebank) and move them.
Then I would uninstall everything...
V1,any updates,empty's mod,model packs,the works.
Then reninstall v1 and try it again.
If it works I would transfer my copied folders over a little at a time and keep checking just to see if it works.
Another thing you might check is I had a debug error problem earlier in the day.
It turned out that if you have more than one script in the scriptbank by the same name you can't test,build or anything like that...
You might check your scriptbank just to see.
If there are any scripts with duplicate names simply move them somewhere else.That fixed that problem for me.
And e-mail Lee.I am sure he will be happy to assist you.