Indicators Not Working!

I am hoping someone can give me some advice/tips on how to solve this problem...
 
For quite some time the indicators on my Mk2 RS2000 would have moments when the indicators would flash very fast (generally when car was hot). I know this is commonly a sign that a bulb has blown, but all bulbs were and still are ok. I just let it go because for the amount of km's I did in the car it didn't really worry me. Unfortunately now though, the indicators are not working at all. I thought perhaps flasher unit had died, so replaced that, but this did not fix the problem. The hazards still flash normally but trying to use the indicators just results in a extremely fast ticking of buzzing noise being emitted from the flasher unit, but no lights.
 
I am thinking that the next step is to start looking at the indicator stalk but would like any advice or opinions and possible things to look out for.

As PaulMKI said, check all the grounds to the indicators. 
 
Also check the bulbs are fitted properly in the dash itself.  I have had a few issues over the years with the bulbs not connecting properly and hence the indicators won't work.
 
If you have one of those power tester needle things ($10.00 from Super Crap Auto) just work your way along the wires to see where the issue is.
 
Good luck
 
Matt

As fordsy said, it's the stalk. Most likely to find a broken wire joint/solder. Can be fixed if you're handy with fine soldering. This will be a common issue with many people using the non OE stalks now, but then again, there's not much choice for us.

Oh the joys of classic motoring - seemingly so simple but always so frustrating!