After reverting back from BURG to GNU GRUB2, I noticed that the purple Plymouth loading screen wasn't appearing until the very end of the boot-up process, when it flashed up for about a second.
Before this, the purple screen loaded with the Ubuntu logo and the dots at the bottom changing colour one by one. Now, after selecting Ubuntu on the GRUB2 menu, I see a black screen for a long time (probably while Ubuntu is booting in the background), and then the purple screen shows up for a second and the dots change colour all at once. Then, it takes me to the log-in screen.
This is really bugging me, and I'd be grateful if anyone could help. Thanks!
Ubuntu 14.04 LTS Dual-booted alongside Windows 7 Toshiba Satellite C660-2EL