Arduino IDE not compilling

Hi,
I was using Arduino IDE on my computer for very long time. Today, when I started it, I uploaded sketch to Arduino withnout any problems. After few minutes, I modyfied the sketch (from Serial.println("chnok"); to Serial.println("chok"); propably not importat), click Upload button, IDE says Compilling sketch and then, nothing happends. Progressbar isn't moving, it's still compilling. I tryed to reinstal it, but I have to open task manager and kill avr-g++.exe (or something like that) to could uninstall it. When I installed it again, runs it, the same happends. So I exited the IDE (kill avr in task manager), run IDE again, turned on details about compilling (or how is the black windows down called), try tu upload again and it says:

C:\Program Files (x86)\Arduino\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega2560 -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=106 -IC:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\variants\mega -IC:\Users\Adam\Documents\Arduino\libraries\light_WS2812 C:\Users\Adam\AppData\Local\Temp\build2307675544325359755.tmp\ledstripcontroller.cpp -o C:\Users\Adam\AppData\Local\Temp\build2307675544325359755.tmp\ledstripcontroller.cpp.o 
C:\Program Files (x86)\Arduino\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega2560 -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=106 -IC:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\variants\mega -IC:\Users\Adam\Documents\Arduino\libraries\light_WS2812 -IC:\Users\Adam\Documents\Arduino\libraries\light_WS2812\utility C:\Users\Adam\Documents\Arduino\libraries\light_WS2812\light_ws2812.cpp -o C:\Users\Adam\AppData\Local\Temp\build2307675544325359755.tmp\light_WS2812\light_ws2812.cpp.o 
C:\Program Files (x86)\Arduino\hardware\tools\avr\bin\avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega2560 -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=106 -IC:\Program Files (x86)\Arduino\hardware\arduino\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\variants\mega -IC:\Users\Adam\Documents\Arduino\libraries\light_WS2812 -IC:\Users\Adam\Documents\Arduino\libraries\light_WS2812\utility C:\Users\Adam\Documents\Arduino\libraries\light_WS2812\WS2812.cpp -o C:\Users\Adam\AppData\Local\Temp\build2307675544325359755.tmp\light_WS2812\WS2812.cpp.o

And it freezes. How can I get the IDE working to uploading the sketch?
Windows 8 64 bit | Arduino MEGA 2560 on COM13 | Arduino IDE 1.0.6
Thanks.
(sorry for my english)