My desktop is broken but I am unsure if my problem is with the same issues as mentioned above. I have been consistently updating, but rarely powerdown my system. I dual boot, and recently went back over to Win7 for an Itunes issue. When I returned to my Linux Mint 12 (Cinnamon), my linux system froze after the "checking Battery Status" and several lines of "Checking cache."..(I apologize I forgot to take notes on the final lines but will next time I reboot). I've had a problem with my system freezing after the "Checking Battery Status" in the past, but thought I had fixed it, since I haven't had a problem in some time. So I super key- F2 and login in and run sudo apt-get update; sudo apt-get install, which has helped in the past. I then ran startx.
Mint 12 comes up but I do not have toolbar, file manager icon, etc as mentioned by others above. I believe i'm now in MATE, vs. Cinnamon, as I have wobbly windows, and other effects that I believe I set in MATE prior to moving to Cinnemon.
I am a real newbie, and alhtough I have a certain amount of functionallity, I'm not sure what I should do to get my system back (specifically the toolbar). I am able to navigate into system settings, and could add additional drivers (ATI/AMD proprietary FGLRX graphics driver OR ATI/AMD proprietary FGLRX graphics driver, if the consensus is the nvidia drivers are the problem. (currently, my graphics are driven by Gallium 0.4 on AMD BARTS)
Obvioulsy I have internet connectivity which is a God send, so I can research the problem (and read your responses/solutions!).
Also I am unsure how to determine exactly whether i'm in MATE, Cinnamon, or Gnome 3, since I don't have the login screen to choose my environment (nor do I know how to change environments i.e. change over to MATE if I'm in GNOME 3)
Hope this wasn't too many issues within one post.
dual boot OS: Win7(64bit)/LM12(64bit)
chip: i5-2500K Quad-Core 3.3 - 3.7GHz,
Ram: G.SKILL, 8GB (2 x 4GB)
GPU: SAPPHIRE, Radeon™ HD 6850 775MHz, 1GB GDDR5
Hard Drives: INTEL, 120GB SSD/SEAGATE, 1TB HDD