Ok so I can finally tell you what happened.
FalKoopa
this relates to linux mint so listen
First for my brother......his hdd died as well as his pc and because he made no backup......he lost everything.....
For me, well i had everything backup before reinstalling so it';s fine.
But as soon as I was ready to call it a day, I realised I broke my xserver
What happened is I need to have an updated mesa (cause dolphin) and for some reasons, if you isntall mint 17.3 DIRECTLY from the iso, you cannot use the updated ppa because they for some reasons locked the dependancies on packages that aren;t updated enough so you cannot update mesa or you break the xserver.
So, what I had to do to fix this (and this is honestly ridiculously weird)
Get mint 17.2, install, get ppa, update mesa (because it does work on 17.2) THEN upgrade to 17.3.
lol
Anyway I am on that part, I have almost everything back, I am just recopying back my files now