Hi! Yeah alpha 1.51 works just fine, I checked. Here's the logs.txt file:
Language testing doc: data/Languages\English.xml
Textures Size: 71
Textures Size: 20
FONT Loaded
Screensize: 9999 9999
OpenGL version: 4.4
Antialias level: 0
SetUILoadingSprite
SetUILoadingSprite
Start setting desktop properties
SetUILoadingSprite
Is CSS success: 1
SetUILoadingSprite
SetUILoadingSprite
Start setting intro desktop properties
Is CSS success: 1