Download the Linux version on rig from this link :

https://drive.google.com/drive/folders/0B69wv2iqszefdFZUV2toUG5HdlU

extract it (right click extract here)

Go to /home/m1/eth (can do it using GUI)

rename the 9_8 to 9_8_xx

copy the latest claymore folder from downloads and paste it in the above eth folder and rename it to 9_8.

It should work normally (this is the easiest work around, you don't need to edit any 1bash or 3main).

I've seen a little increase in dual mining lbc hashrates.