Nathan Wittstock, thank you for reporting this and helping make Ubuntu better. Please answer the following questions:
+ Does toggling the following make a difference:
Tools -> Options -> View -> checkbox Use hardware acceleration
Tools -> Options -> View -> checkbox Use Anti-Aliasing
+ How about switching to the nouveau drivers?
Nathan Wittstock, thank you for reporting this and helping make Ubuntu better. Please answer the following questions:
+ Does toggling the following make a difference:
Tools -> Options -> View -> checkbox Use hardware acceleration
Tools -> Options -> View -> checkbox Use Anti-Aliasing
+ How about switching to the nouveau drivers?