I'm still having issues with the side buttons. After every restart, they stop working until the CUE software is uninstalled, the computer rebooted and the software reinstalled again. Works again until the machine is rebooted again, at which point all the remapped side button keys stop working. Have tried both firmwares for the mouse, 3 versions of the CUE software (current release (1.15.36), last beta (1.15.31) and the newest beta (1.16.19) you can only access if you have the old beta installed and update within the app itself)). Saving profiles to the device memory seems to have no effect either.
Starting to get really frustrating, I use these side buttons a lot in MMO's and other games. Had the mouse for a while now and still no fix for this issue. Having to reinstall the CUE software every single time I reboot my computer just to get them working again is ridiculous, and starting to make me wish I went with a Naga again instead.