iMore

Late last night I "upgraded" and while it took forever it did load and things looked fine for the few minutes I used the computer. Tonight I tried to use the computer and it keeps giving me grey screens! First screen is just blank, it eventually pops up the apple logo and then gives a cross out symbol (like the red circle with the line thru it) then a file folder with a ? Mark that flashes. This is complete bs I have only had this for a little over a year, there is literally almost nothing on my computer and everything that is on it has been there for at least a year. I shelled out the extra $$$ to not have to worry about things like this. Has anyone had this problem and/or knows how to fix it? I will be livid if I have to pay a bunch to get it fixed especially so close to being out of warranty. TIA