Cannot Run Guest Ubuntu with VitualBox on Mac in fullscreen mode

[Unix'EM]

Hello friends. I have a problem, I cannot Run Guest Ubuntu with VitualBox on Mac in fullscreen mode. What may be the problem? When i run Ubuntu 9.04 as a VirtualBox guest, i will do not get true full screen resolution. I get black borders. If anyone have any work around, please help.

[Patio]

You need to update your Virtualbox if its not the latest one. Also see if you have assigned sufficient video memory to the ubuntu guest OS. Did you update ubuntu after installation? Try that out, may be that could help too...

[Solomon]

Try installing guest additions. This may improve the ubuntu support for Mac's VirtualBox. Well, the best option is to keep your VirtualBox up-to-date. See if you can increase memory assigned to the Virtual Machine and also try to increase the Video Memory...

[SmirnOFF]

Well, there are similar topic that may be helpful to you. See these :
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