My actual minecraft version is 1.4.6. So i tried to update it to 1.4.7 with the "Force update" button in MultiMc (version 4.3.0). But nothing happened and the version is still 1.4.6. I also tried it couple of times, but it didn't work.
thank you Hidinginthelight :-D! now i have updated multimc, minecraft, forge, my textutepack and all my mods and everything works well, but i can't install the latest version of optifine, although i made it like this page explain it : http://minecraft-modding.de/mods/optifine-mod-1-4-7/.
Thanks for your help ;-)
Try selecting the instance you want to update, then click the 'Change Version' button. Select 1.4.7 from the list.
"There was a fatal error starting up minecraft an FML
Minecraft cannot launch in it's current configuation."
And then i got a link to this report:
There are different versions of optifine that are required for different versions of forge.
Something changed in the forge versions 506-516 - Not even sure if there is an optifine version that works for this range.
And then again at 518. The latest optifine from here: http://www.minecraftforum.net/topic/249637-147-optifine-hd-c3-fps-boost-hd-textures-aa-af-and-much-more/
Should work for any forge versions 518+