When I'm on servers or single player and i right click quickly (like when I'm pvping or grinding) the screen flickers and the game crashes ( this doesn't happen every time i click quickly). It takes me back to the launcher log with an error saying "(random numbers) has no item" with the new launcher updates it doesn't show that error anymore every time it crashes. This same thing also happens when I'm using the technic launcher modpacks. Over time this is becoming more frequent and I think it is being caused by the graphics card but I'm not sure can anyone help?
That shouldn't be your graphic card...but having a bad/old card would not help. Are you just using the Technic launcher or do you also have this problem with both the Technic and Mojang launchers?
Only Vanilla and technic launcher I haven't used any others. And SeaWry I checked the link and followed the instructions and it says there are no problems found.
Only Vanilla and technic launcher I haven't used any others. And SeaWry I checked the link and followed the instructions and it says there are no problems found.
You need to save the log and copy and paste the contents of the log here inside an spoiler or to http://pastebin.com/ as an Private paste (just suggested).
http://www.minecraftforum.net/forums/support/unmodified-minecraft-client/tutorials-and-faqs/1871677-obtaining-a-dxdiag-log
Follow the instructions in that thread.
You need to save the log and copy and paste the contents of the log here inside an spoiler or to http://pastebin.com/ as an Private paste (just suggested).