Avrdude error @ Dagu Mini Driver

I am not able to upload a sketch to Dagu Mini Driver and get the error message avrdude:
verification error, first mismatch at byte 0x0000 0x3f = 0x41.

Foutmelding.jpg

I was able to work with the Mini driver for a while (uploaded Several sketches) (conclusion: drivers installed ok)

Drivers.jpg

but at a certain moment I got the error message. Also not able to upload te blink example blink.  

Did some Google searching. Tried several times to press the reset button before upload, but  no luck. Also tried other programmer settings, but again no luck.

Picture2.jpg

Anny suggestions?

I used Arduino 1.05 and

I used Arduino 1.05 and powered the Mini Driver via the USB-connection. Later I also tried to load a sketch @ Arduino 1.03. What does this implicate on your remark on flat batteries? Is the way to go to follow the tutorial and to reinstall the bootloader with Arduino 1.03?

The Mini Driver was

The Mini Driver was standalone, nothing attached to it, just the board connected to my laptop’s usb-port.

I’m going to try to reinstall the bootloader later this week.

First time I’m going to do something like that. Exciting :wink:

Was this solved?

Did reinstalling the bootloader work?

I’m getting this error with my mini driver too. Uploaded codes a few times, haven’t used it for about 8 months, tried uploading new code today but got the error-

avrdude: verification error, first mismatch at byte 0x0012
         0xec != 0x10
avrdude: verification error; content mismatch