Unity 3D stopped working after installing upgrade packs.how to check if unity 3d work

[flipster92]

Hello, dear community! I have an issue here. My Ubuntu 12.04 refuses to launch Unity under 3D after I installed an update package earlier today, which as it turns out contained two Radeon packages. I tried completely purging fglrx in order to try and do a fresh install of my drivers (currently using Radeon HD 7400m), but to no avail. It's just a wild guess, but I think the updates didn't install correctly or were a bad package. Has somebody had a simmilar problem and if so, can you provide some insight on how to solve the issue?
Million thank yous to those who respond!

[flipster92]

Oh, also, it looks like I accidentally pasted my google search in the Title box. My apologies.

[flipster92]

UPDATE:Turns out I downloaded a PPA which I successfully removed under synaptic, the problem with not being able to purge the fgrlx still persists though...