When I play with my guitar it says I am pressing the blue button.

Perhaps the micro switch under the fret button is faulty. return it to the shop and have them test it.

Are you pressing the sync buttons on the component and then pressing the sync button on the console?It is under the large door on the front of the console.First press the guitar sync,then it should give you a couple of seconds to press the console sync.If the light goes to constant blue,it is synched.Do the same for the other component.Good luck and rock on!

Check the D-pad on the guitar. Sometimes it can get stuck slightly and can count for accidental strumming. Also be sure to keep the button pressed firmly when playing chords. It is very sensitive to touch.

Play the tutorial before playing the game. It'll tell you how to play the game. If there is still no sound, it is possible that the strum bar on the guitar is broken, and you will need to have it replaced. You can use the D-pad on the guitar as an alternative to the strum bar, just to see if the guitar works.

faljose,
You could get all the songs by just just playing the career unlocking them one by one or you could go to the Main menu and choose 'Options' then choose 'cheats' then choose 'Enter cheat' then with the guitar press the colored buttons in this order :
blue, blue, red, green, green, blue, blue, yellow.
when done a message will appear telling you that you unlocked up all songs in Quick Play. Now that you did so you'll have noticed the 'same as before' emtpy slots for cheats. You actually have to scroll down the list of the emtpy cheats until you find 'Unlock all Quick Play Song' and if will say "Off" under it, simply select that to be 'On' and just head back to the main menu and go play Quick Play with every single song in the game. Now you can Rock.
randy320sgi

For me it was the white box that connects to the back of the wii. I tried everything from changing batteries in the guitar, to pressing white button on guitar, to restarting while holding white button down to screaming at the wii. Then I bought a new rockband guitar at best buy and the new guitar did not work until I swapped the white box (dongle?) that connects to the back of the Wii. One is for the drums and the other is for the guitars and mic. Hope this helps.

guitar hero on easy? all you do is strum, no need to press buttons

make shure to start the wii, then when it says to press the a button use one guitar. use that same guitar to go to the disk and start it then push the a button on the second guitar. and it should light the blue box number 2 on remote go to head to head and they both should work fine.

try the slots in the front, i never use the one on the back of the system to play games,

my rockband guitar works find in gh3

On the face of your 360 is a little round button that tells the system to search for wireless controllers. Push it at the same time you push the connect button on your guitar or drums. I figured this out after returning two other systems to Wal-Mart.... They really should put this info in the instructions somewhere! Tell me if it works for you guys too.