Hmm, A lot of people have had that issue with Visual Studio.. I don't know why it's not working for you guys, but it's working for me just fine. But yes, you do have to point the data.ini towards your GRF. I thought I did that, but I guess I didn't! Thank you for pointing this out, and I will make an annotation now for that. And for the screams, there is a file called ba_frostjoke inside your GRF which you can edit.
you mean the problem of visual studio cant run the rathena-10?
Here i got some solution:
1.Go to microsoft website to download the "Visual studio 2010 ultimate" iso file.(must be ISO)
2.Download "UltraISO"
3.use "ultraISO" to open the Visual studio and find the setup>setup.sdb
4.extract the setup.sdb, open with notepad and edit the "Product key" to this: YCFHQ9DWCYDKV88T2TMHG7BHP
5.drag the setup.sdb back to the ISO and then install the "virtual studio"~
6.now should be fine to open the rathena-10.
( sorry for the poor english )