Atmega running slow

[T-workshop]

Hi everyone,
so..I am doing some prototypes and I am programming them with USBasp.
As usual (probably) I did have the "old firmware problem" so I updated the USBasp.
I did 2 prototypes that programmed just fine and then I had to do some changes on the PCB but nothing changed in the microcontroller areas.
Now when I was trying to program it the IDE just gave me errors that the board doesn't respond.
I found a solution on this forum which slowed the baudrate and now the atmega runs 10 times slower!
even with just a "blink" sketch with 100ms delay the pulses are over 1s.

Is it possible that it is cause by flux residue left under the atmega?

Thanks for any help.

Tomas

[missdrew]

Sounds like you forgot to set the fuses for the external clock. Burn the bootloader (This sets the fuses amongst other things), and re-upload your code.

[T-workshop]

You are my hero!
..and of course you're right. I completely forgot and the it just got worse when I tried to solve it.
Once again, thank you very much!
Tomas