Imprecise GUI

[TBye101]

The mouse input handling doesn't quite work right all the time. Sometimes, clicks are ignored, especially in rapid succession.

Example of what I'm talking about:
Clicking rapidly upon a button 10 times might only result in 3 clicks, and no double clicks.
Clicking slowly, with a second in between 10 times on a button normally results in 10 clicks.
Double clicking with a second inbetween 10 times on a button might result in 3-5 double clicks.