I had troubles with iGor as well.
I didn't have the race list, so I did as instructed HERE, by entering the new server name in the igor.ini file.
IP = iGOR.gplrank.info
I thought it was a R/W right problem but it wasn't what I thought.
On the contrary, it was only when I protected the igor.ini file from writing that things started to change.
At first, I didn't get a race list, but when I quit iGor, I got a message that iGor couln't write in that file (figures).
The next time, I did get a race list. Only then, did I un-protect my file.
Hope this helps.