@Jayzx,
Thank you for you feedback.
1, Can you tell me your screen resolution and text size setting (DPI) ?
I suspect the reason of your problem 1 and 3 is DPI setting, change to 100% may fix this problem.
2, In old version of wise care 365, user can run multitask , but it may cause some error. So, v3 fix it, user only can run one task at the same time.
3, Error 4 and 5, we know the reason, and we will fix it.
4, About themes, v3 supports custom theme. Please try!