This is a conflict with your theme CSS code or with other plugin CSS code. Please leave your website URL to allow us debug it.
Hello
First of all, thank you for you fast response. Since i'm still in the process of developping the website, it isn't online yet. And as a result, I can't provide you with an URL. Is there any other way I can provide you with the code?
In the meantime I've tried a few things to narrow down the options a bit. I disabled all the plugins (one by one) but this had no influence on WPDiscuz displayed. However when I switched themes from Salient (the theme I use) to one of the standard wordpress themes like twenty fiftheen I saw that reply and edit button showed up correct this time. However the vote-up, vote-down and the number of votes still didn't show up like they should..
Thanks in advance
I'm sorry but I can't provide CSS code to fix this conflict without debugging your website on front-end.